メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.126456675324 34.6459858422943, 135.125946232556 34.6465075218832, 135.125209650179 34.6461922846038, 135.124834307989 34.6460099191418, 135.124861298105 34.6459804453169, 135.125193339375 34.6456244521668, 135.125482325228 34.6453295887094, 135.125998279747 34.6456733052511, 135.126456675324 34.6459858422943)) ^^http://www.opengis.net/ont/geosparql#wktLiteral