メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.223554764741 34.7174261680454, 135.223421374664 34.717713362652, 135.223301243112 34.7179644010982, 135.222492751025 34.7176547935169, 135.222618149774 34.7173856877309, 135.222754464421 34.7171165020695, 135.223554764741 34.7174261680454)) ^^http://www.opengis.net/ont/geosparql#wktLiteral