メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.982048045895 34.8686115888459, 136.981915318143 34.8687166079701, 136.981782638775 34.8687997935969, 136.981594627379 34.8688551443064, 136.981446354142 34.8689095703528, 136.981405719989 34.8687665364619, 136.981211295868 34.8684505012113, 136.98095780018 34.8681652241246, 136.980718623707 34.8679355370087, 136.980535928443 34.86776453399, 136.981244896913 34.8674300270346, 136.98192678779 34.868439695598, 136.982048045895 34.8686115888459)) ^^http://www.opengis.net/ont/geosparql#wktLiteral