メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.618151450769 34.933308900192, 136.618140200534 34.9338511169655, 136.618124734555 34.9345157598623, 136.616928790577 34.9344344077327, 136.615981104446 34.9343572849718, 136.615989258881 34.9336909168048, 136.615988566109 34.9330136770818, 136.616956111618 34.9331349299692, 136.616964932344 34.9325585668303, 136.618170013716 34.9325721919336, 136.618151450769 34.933308900192)) ^^http://www.opengis.net/ont/geosparql#wktLiteral