メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.991985775918 34.9076502041453, 136.991777489716 34.908289957922, 136.991346602926 34.9097525579258, 136.990780101679 34.9097883657457, 136.990194097763 34.9098475948531, 136.98913098003 34.909974867331, 136.989129140977 34.9096887138022, 136.989063452679 34.9093112624065, 136.988981887012 34.9088738535082, 136.99040560728 34.9082763620249, 136.991985775918 34.9076502041453)) ^^http://www.opengis.net/ont/geosparql#wktLiteral