メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.284973642595 43.0778604265207, 141.284438201549 43.078196164761, 141.284285201185 43.0782922800841, 141.283895465108 43.078525719289, 141.283646027266 43.0782868872383, 141.283365016461 43.0780304158953, 141.283232232961 43.0779022802426, 141.283177050353 43.0778423165434, 141.282708739503 43.0773924038507, 141.282407373197 43.0770949672342, 141.283231837714 43.0765852924055, 141.283855316549 43.0762178415068, 141.284211718611 43.076007789545, 141.284385828687 43.0761493532177, 141.285033181776 43.076762808088, 141.285733759391 43.0773968917383, 141.284973642595 43.0778604265207)) ^^http://www.opengis.net/ont/geosparql#wktLiteral