メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.414685274027 34.7614050861401, 135.414806086765 34.7614168283446, 135.415690992362 34.7614759926666, 135.415672375717 34.7621730914708, 135.414806499322 34.7621082629051, 135.414674624373 34.7620990140913, 135.414053333103 34.7620551028656, 135.414070660672 34.7613622431721, 135.41433701307 34.7613710009739, 135.414685274027 34.7614050861401)) ^^http://www.opengis.net/ont/geosparql#wktLiteral