メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.878104272154 35.1362712820567, 136.877049536857 35.1362435257008, 136.877056065709 35.1361186762348, 136.876537225082 35.1361123503593, 136.876576720425 35.1349585888858, 136.878148606237 35.1350100661541, 136.878122669045 35.1354365014067, 136.878104512981 35.1360449352849, 136.878104272154 35.1362712820567)) ^^http://www.opengis.net/ont/geosparql#wktLiteral