メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.747388480514 35.4104421166546, 136.746697307817 35.4104327512458, 136.746041242546 35.4103966693632, 136.745973008095 35.4103929112231, 136.746002178842 35.4102168894519, 136.746016720522 35.4100417325998, 136.746199617922 35.4100360308586, 136.746657848041 35.4100304397113, 136.746669330651 35.4100639292268, 136.747363425008 35.4100563347791, 136.747388480514 35.4104421166546)) ^^http://www.opengis.net/ont/geosparql#wktLiteral