メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.370912996325 43.7436563989092, 142.371407778575 43.7438059583525, 142.371039163228 43.7444598995083, 142.371024770915 43.7444840352257, 142.370513310051 43.7447096237407, 142.369653574614 43.7450893701255, 142.369215145589 43.7449618089924, 142.369540931626 43.7443969965747, 142.36973266381 43.7440645784589, 142.369904452434 43.743766744449, 142.370085226476 43.7434037306273, 142.370751353019 43.7436075384968, 142.370912996325 43.7436563989092)) ^^http://www.opengis.net/ont/geosparql#wktLiteral