メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.617865535633 35.3954562794172, 136.61777144809 35.3978539244077, 136.615825054813 35.3977949871083, 136.615738818689 35.3997017191514, 136.613973937169 35.3996493494795, 136.614308463691 35.3987245036088, 136.614669489578 35.3977525951706, 136.615011028415 35.3968248893076, 136.61616322507 35.3937479133015, 136.616428689634 35.3937376443249, 136.616427940065 35.3930728702522, 136.616742170619 35.3930743006084, 136.617956988754 35.3931255959722, 136.617882128661 35.3950334098098, 136.617865535633 35.3954562794172)) ^^http://www.opengis.net/ont/geosparql#wktLiteral