メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.821651043181 35.2974957974137, 136.821106299709 35.2977046650432, 136.820510584301 35.2979309898234, 136.820224081532 35.2970401628032, 136.820854627644 35.2968980241025, 136.821139691112 35.2968337692832, 136.821179556476 35.2969872642854, 136.821474811728 35.2969297984218, 136.821651043181 35.2974957974137)) ^^http://www.opengis.net/ont/geosparql#wktLiteral