メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.875994787054 35.115763339883, 136.87599028516 35.1159423342042, 136.875979930214 35.1163544012884, 136.875966848066 35.1172084105947, 136.87489017661 35.1171908508405, 136.874905637817 35.1166603545221, 136.874931202375 35.1157829308805, 136.874815644651 35.1157826487504, 136.874816297529 35.1156021668761, 136.874937393583 35.1155701406037, 136.87493868895 35.1155259213009, 136.875226154065 35.1155274668879, 136.876000363274 35.1155416046257, 136.875994787054 35.115763339883)) ^^http://www.opengis.net/ont/geosparql#wktLiteral