メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.862517007249 35.1231784161582, 136.862790966383 35.1231981285481, 136.862798889937 35.1232455461275, 136.862871947429 35.1235101154533, 136.862921745988 35.1236903950097, 136.863019817883 35.1240455267219, 136.86148985908 35.1239721943356, 136.86150375577 35.1235778350177, 136.861504370715 35.1234352198329, 136.861504673885 35.1233652157596, 136.861505001941 35.1232885210107, 136.861518257112 35.1231067104608, 136.862517007249 35.1231784161582)) ^^http://www.opengis.net/ont/geosparql#wktLiteral