メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.884747986788 37.0510538223422, 140.88830567678 37.0510903705628, 140.888292213056 37.0516524046488, 140.888261076185 37.0527516599113, 140.888098484016 37.0534351196411, 140.88603836619 37.0534217524658, 140.884725130319 37.0533923635478, 140.884698682013 37.0533916141137, 140.884710105936 37.0527877789336, 140.883114537744 37.0527617209518, 140.883135964778 37.0519334403891, 140.882794807658 37.0512248780463, 140.883070836339 37.0510322185241, 140.884747986788 37.0510538223422)) ^^http://www.opengis.net/ont/geosparql#wktLiteral