メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.169536846221 34.2356371580551, 135.169530620955 34.2362741297152, 135.168746395675 34.2362543239735, 135.168452339925 34.2366142316768, 135.168161267814 34.2364440638176, 135.167562941407 34.2360676985817, 135.167944554411 34.2356602084266, 135.16874625431 34.2356704168706, 135.168746584983 34.2356366103424, 135.169536846221 34.2356371580551)) ^^http://www.opengis.net/ont/geosparql#wktLiteral