メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.78595812407 34.6588928452425, 135.785692465785 34.6589070301715, 135.785692583162 34.658661645079, 135.785696084976 34.658359637968, 135.7856910108 34.6582110169253, 135.785958295667 34.6582182461351, 135.78595812407 34.6588928452425)) ^^http://www.opengis.net/ont/geosparql#wktLiteral