メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.897524850343 36.6972056233594, 136.896537220991 36.6980644894952, 136.895773781357 36.698742268514, 136.893670951739 36.6975237041059, 136.894511780167 36.6968443533996, 136.894346205405 36.6966150078723, 136.894231869162 36.6964466805143, 136.894214130911 36.696332157114, 136.89424384508 36.6960508726789, 136.895200772597 36.6961833808744, 136.895213733553 36.6959349383158, 136.896698023371 36.6970612515832, 136.896981745208 36.6968097605053, 136.897524850343 36.6972056233594)) ^^http://www.opengis.net/ont/geosparql#wktLiteral