メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.214532566577 34.657196645463, 135.213560211796 34.6567909703999, 135.209591802775 34.6551360814432, 135.211773470325 34.6537371519969, 135.214237633697 34.6521569700079, 135.215023753035 34.6524780681298, 135.216827585652 34.653217872532, 135.21563780017 34.655280744723, 135.214532566577 34.657196645463)) ^^http://www.opengis.net/ont/geosparql#wktLiteral