メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.925473009597 34.8896404781453, 136.926344412688 34.8909053978316, 136.925775722516 34.8913222121902, 136.925396534473 34.8916102991375, 136.925144566985 34.8917751724856, 136.924848014371 34.8912101427032, 136.924776520223 34.8910911818976, 136.924506281558 34.8906415704051, 136.924402672178 34.8904709192234, 136.924038196492 34.8898702526628, 136.923592859422 34.8891415881309, 136.924140034717 34.888876803767, 136.924707242988 34.8885105653734, 136.925473009597 34.8896404781453)) ^^http://www.opengis.net/ont/geosparql#wktLiteral