メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.131281117402 39.2935476095347, 141.131780201411 39.2937982117539, 141.131920139182 39.2938684411981, 141.132384290338 39.2941248317514, 141.133172724967 39.2946014407805, 141.132569114736 39.2947177068547, 141.131811002063 39.2947944614487, 141.131215929287 39.2948098472969, 141.130511873686 39.2947979210686, 141.129436714849 39.2947407656103, 141.129475472265 39.2944492366285, 141.129582827644 39.2936047911172, 141.129584491089 39.2931791467287, 141.129493816653 39.293041367984, 141.12963880655 39.2929265666249, 141.131281117402 39.2935476095347)) ^^http://www.opengis.net/ont/geosparql#wktLiteral