メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.492029822599 34.7153336583812, 137.493142863463 34.7151301726319, 137.493216915239 34.7151285307327, 137.493279777062 34.7151494741846, 137.493765300227 34.7153637743482, 137.494466845425 34.7153967494081, 137.494803563025 34.7154469938146, 137.492898471936 34.7153860533948, 137.492377749501 34.7153737211329, 137.492309023511 34.7153721667368, 137.492048213243 34.7153994478848, 137.492029822599 34.7153336583812)) ^^http://www.opengis.net/ont/geosparql#wktLiteral