メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.732059597152 35.4241963249722, 136.732238563639 35.4246565664235, 136.732435169223 35.4251329615151, 136.732632680112 35.4256331972683, 136.731070203434 35.4260137832221, 136.730414053477 35.4261873210878, 136.729967660489 35.4252256689825, 136.729530072729 35.4243161581239, 136.730163909948 35.4241459237639, 136.73138235115 35.4238483659593, 136.731900613133 35.4237240425145, 136.732059597152 35.4241963249722)) ^^http://www.opengis.net/ont/geosparql#wktLiteral