#!/usr/bin/php
{"type":"MultiPolygon","coordinates":[[[[10,10],[10,20],[20,20],[20,15],[10,10]]]]}

<MultiGeometry><Polygon><outerBoundaryIs><LinearRing><coordinates>10,10 10,20 20,20 20,15 10,10</coordinates></LinearRing></outerBoundaryIs></Polygon></MultiGeometry>

<LinearRing><coordinates>3.5,5.6 4.8,10.5 10,10 3.5,5.6</coordinates></LinearRing>

LINEARRING(3.5 5.6,4.8 10.5,10 10,3.5 5.6)

POLYGON((10 10,10 20,20 20,20 15,10 10))

{"type":"Polygon","coordinates":[[[10,10],[10,20],[20,20],[20,15],[10,10]]]}

<trkseg><trkpt lon="3.5" lat="5.6"></trkpt><trkpt lon="4.8" lat="10.5"></trkpt><trkpt lon="10" lat="10"></trkpt></trkseg>