メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.771028557752 42.9030722436795, 140.770990141269 42.9030744191664, 140.770964495728 42.9028825785056, 140.770956433008 42.9023834795998, 140.770904613487 42.9018891453943, 140.770643910471 42.9018611543099, 140.770590569352 42.9013625106181, 140.770059149583 42.9012733386773, 140.769751369924 42.901189735768, 140.769566573932 42.9011160944475, 140.769754398243 42.9005944822855, 140.769999383205 42.9000427340666, 140.770284731143 42.9000078872746, 140.773080372049 42.8997426463847, 140.773363649505 42.9029720743801, 140.771721156834 42.9030425161406, 140.771663888773 42.9030449418176, 140.771028557752 42.9030722436795)) ^^http://www.opengis.net/ont/geosparql#wktLiteral