メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.691165800729 35.0630106048156, 136.691544691249 35.0639240461187, 136.691172715216 35.0639966601185, 136.690633628494 35.0640945894175, 136.690030110889 35.0642204891147, 136.689552166298 35.062730822561, 136.690896752088 35.0624502834099, 136.691101112093 35.06284568527, 136.691230209085 35.0628125545114, 136.691279406559 35.0629787601825, 136.691165800729 35.0630106048156)) ^^http://www.opengis.net/ont/geosparql#wktLiteral