メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.248543655744 34.8151734936059, 137.248270432664 34.8152525718652, 137.248270380984 34.8151962261796, 137.248024538701 34.8153316292122, 137.247560212366 34.8156362203468, 137.247382399951 34.8154447696924, 137.246917346489 34.8149492545534, 137.247067544566 34.8148251898649, 137.248078063551 34.8140919864275, 137.248297183238 34.8146214807898, 137.248543655744 34.8151734936059)) ^^http://www.opengis.net/ont/geosparql#wktLiteral