メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.628027444231 36.5624832448907, 136.629251590497 36.5634703312586, 136.629225226618 36.5634835887226, 136.628233601702 36.5640214110765, 136.628072802919 36.5640943691122, 136.627470061194 36.5644296809249, 136.627417173884 36.5644537321767, 136.626975335256 36.564023981587, 136.627005179107 36.5629409348846, 136.627031099316 36.5623836023638, 136.62651208826 36.5619520930231, 136.626765503812 36.561858010245, 136.627084336188 36.5617009619378, 136.628027444231 36.5624832448907)) ^^http://www.opengis.net/ont/geosparql#wktLiteral