メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.813154382235 35.3708996734137, 136.815765794944 35.3714167952943, 136.815319314617 35.3729417265344, 136.814791545982 35.3728219664507, 136.813739592408 35.3725151959282, 136.813518898441 35.3721980169022, 136.813245351983 35.3718366704162, 136.812969612659 35.3715105275236, 136.812697822785 35.371215379515, 136.81245012033 35.3710010728213, 136.812514960148 35.3708064083213, 136.813154382235 35.3708996734137)) ^^http://www.opengis.net/ont/geosparql#wktLiteral