メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.985760433932 33.7321782774372, 135.984893896846 33.7324579954237, 135.984647596622 33.7319989898603, 135.984766745482 33.731867277672, 135.984839777338 33.7317581019032, 135.984870535413 33.7316779442419, 135.984905142134 33.7315559450035, 135.985128023431 33.7316426040448, 135.985462369933 33.7315302087842, 135.985498593672 33.7316089625563, 135.985760433932 33.7321782774372)) ^^http://www.opengis.net/ont/geosparql#wktLiteral