メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.597711814965 34.5930180402877, 135.597548074464 34.5953530152332, 135.596037938405 34.5952780179061, 135.594935376434 34.595223089497, 135.594131579869 34.5951795693335, 135.593417612425 34.5951500057613, 135.593454277753 34.5940387175597, 135.594262600342 34.5938494094163, 135.595103016628 34.5936448493967, 135.595826790972 34.5934753949519, 135.596921205045 34.5932110942135, 135.597711814965 34.5930180402877)) ^^http://www.opengis.net/ont/geosparql#wktLiteral