269 lines
5.9 KiB
C++
269 lines
5.9 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2013, University in Hagen,
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Faculty of Mathematics and Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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//paragraph [1] Title: [{\Large \bf \begin {center}] [\end {center}}]
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//[TOC] [\tableofcontents]
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//[ue] [\"u]
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//[ae] [\"a]
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//[oe] [\"o]
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[1] File Refinement3.h
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This file contains classes and functions for use within the operators intersection and inside
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[2] Implementation with exakt dataype
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Oktober 2014 - Maerz 2015, S. Schroeer for master thesis.
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[TOC]
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1 Helper classes and methods
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1.1 Some forward declaration of helper methods
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*/
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#ifndef REFINEMENT3_H_
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#define REFINEMENT3_H_
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#include <gmp.h>
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#include <gmpxx.h>
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#include "Algebras/MovingRegion2/MovingRegion2Algebra.h"
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namespace temporalalgebra{
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mpq_class instant2MPQ( const Instant i );
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/*
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1.1 Precise Time Interval class ~precTimeInterval~
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*/
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class precTimeInterval {
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public:
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mpq_class start;
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mpq_class end;
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bool lc;
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bool rc;
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inline precTimeInterval():
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start(0),
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end(0),
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lc(false),
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rc(false) {}
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inline precTimeInterval(mpq_class s, mpq_class e, bool l, bool r) :
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start(s),
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end(e),
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lc(l),
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rc(r) {}
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inline precTimeInterval(Interval<Instant> t):
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start(instant2MPQ(t.start)),
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end(instant2MPQ(t.end)),
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lc(t.lc),
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rc(t.rc) {}
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inline precTimeInterval(Interval<Instant> t, PreciseInterval p,
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const DbArray<int>* preciseInstants):
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start(0),
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end(0),
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lc(t.lc),
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rc(t.rc)
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{
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start = p.GetPreciseInitialInstant(preciseInstants);
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start = start + instant2MPQ(t.start);
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start.canonicalize();
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end = p.GetPreciseFinalInstant(preciseInstants);
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end = end + instant2MPQ(t.end);
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end.canonicalize();
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}
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inline bool operator==(precTimeInterval pti) const
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{
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return (lc==pti.lc) && (rc==pti.rc)
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&& (cmp(start, pti.start) == 0) && (cmp(end, pti.end) == 0);
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}
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};
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/*
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1.1 Precise UPoint class ~precUPoint~
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holds the precise values calculated within the set operations
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*/
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class precUPoint {
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public:
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precTimeInterval pti;
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mpq_class x0;
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mpq_class y0;
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mpq_class x1;
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mpq_class y1;
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UPoint up;
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inline precUPoint():
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x0(0),
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y0(0),
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x1(0),
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y1(0),
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up(0) { }
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inline precUPoint(precTimeInterval p, mpq_class px0, mpq_class py0,
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mpq_class px1, mpq_class py1, UPoint pp):
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pti(p.start, p.end, p.lc, p.rc),
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x0(px0),
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y0(py0),
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x1(px1),
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y1(py1),
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up(pp) { }
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inline precUPoint(mpq_class s, mpq_class e, bool l, bool r, mpq_class px0,
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mpq_class py0, mpq_class px1, mpq_class py1, UPoint pp):
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pti(s, e, l, r),
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x0(px0),
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y0(py0),
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x1(px1),
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y1(py1),
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up(pp) { }
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};
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/*
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1.1 Precise UBool class ~precUBool~
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holds the precise values calculated within the set operations
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*/
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class precUBool {
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public:
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precTimeInterval pti;
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bool status;
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inline precUBool():
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status(false) { }
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inline precUBool(precTimeInterval p, bool st):
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pti(p.start, p.end, p.lc, p.rc),
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status(st) { }
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inline precUBool(mpq_class s, mpq_class e, bool l, bool r, bool st):
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pti(s, e, l, r),
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status(st) { }
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};
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/*
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1 Class ~RefinementPartition3~
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for set operations inside and intersection with MPoint and MRegion2
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1.1 Class definition
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*/
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class RefinementPartition3 {
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private:
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/*
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Private attributes:
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* ~iv~: Array (vector) of sub-intervals, which has been calculated from the
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unit intervals of the ~Mapping~ instances.
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* ~vur~: Maps intervals in ~iv~ to indices of original units in first
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~Mapping~ instance. A $-1$ values indicates that interval in ~iv~ is no
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sub-interval of any unit interval in first ~Mapping~ instance.
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* ~vup~: Same as ~vur~ for second mapping instance.
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*/
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std::vector<precTimeInterval> iv;
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std::vector<int> vur;
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std::vector<int> vup;
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/*
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~AddUnit()~ is a small helper method to create a new interval from
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~start~ and ~end~ instant and ~lc~ and ~rc~ flags and to add these to the
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~iv~, ~vur~ and ~vup~ vectors.
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*/
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void AddUnits(const precTimeInterval pti, const int urPos,
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const int upPos);
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void AddUnits(const int urPos, const int upPos, const mpq_class start,
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const mpq_class end, const bool lc, const bool rc);
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public:
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/*
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The constructor creates the refinement partition from the two ~Mapping~
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instances ~mr~ and ~mp~.
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Runtime is $O(\max(n, m))$ with $n$ and $m$ the numbers of units in
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~mr~ and ~mp~.
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*Preconditions*: mr.IsDefined AND mp.IsDefiened()
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*/
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RefinementPartition3( MRegion2& m1, MRegion2& m2);
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/*
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Since the elements of ~iv~ point to dynamically allocated objects, we need
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a destructor.
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*/
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~RefinementPartition3() {}
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/*
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Return the number of intervals in the refinement partition.
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*/
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unsigned int Size(void);
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/*
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Return the interval and indices in original units of position $pos$ in
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the refinement partition in the referenced variables ~civ~, ~ur~ and
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~up~. Remember that ~ur~ or ~up~ may be $-1$ if interval is no sub-interval
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of unit intervals in the respective ~Mapping~ instance.
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Runtime is $O(1)$.
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*/
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void Get(const unsigned int pos, precTimeInterval& civ, int& ur, int& up);
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};
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} // end of namespace temporalalgebra
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#endif
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