メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.591615847378 35.3885258767398, 136.588904599077 35.3886380831799, 136.589134289843 35.3882911754625, 136.589305434868 35.3880330671017, 136.589351416297 35.3879637134155, 136.589743115008 35.3873731586243, 136.590386767461 35.3864344601785, 136.590822318612 35.3857450272769, 136.591091709819 35.3852963379278, 136.591549342793 35.3845708848303, 136.591568077237 35.3846513937464, 136.591620199865 35.3850627512084, 136.591625114172 35.386745515972, 136.591613550311 35.3881451099465, 136.591615847378 35.3885258767398)) ^^http://www.opengis.net/ont/geosparql#wktLiteral