メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.234971801712 34.7091319450915, 135.235453578038 34.7092658500097, 135.235202914986 34.7098063420747, 135.234920652295 34.7104529916173, 135.234849382193 34.7104242215867, 135.234432969343 34.7102785605801, 135.234430240405 34.7102785807762, 135.233786299508 34.7100399452045, 135.234074861507 34.7094698786766, 135.234314641919 34.7089317241885, 135.234971801712 34.7091319450915)) ^^http://www.opengis.net/ont/geosparql#wktLiteral