メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.177342334422 34.7746137278431, 137.176058628841 34.7746814404473, 137.175252959294 34.7744931684985, 137.175469173769 34.7744372343159, 137.175511749113 34.7742469307365, 137.175545597008 34.7741090288223, 137.175589268638 34.7739305572227, 137.175605636967 34.7738250543517, 137.175601419861 34.7738116719798, 137.17635399038 34.7739420526187, 137.177301234278 34.7739038053634, 137.177342334422 34.7746137278431)) ^^http://www.opengis.net/ont/geosparql#wktLiteral