メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.559093811595 35.3090655865496, 136.55835751335 35.309177881735, 136.557874237611 35.3092751756979, 136.557755163141 35.3086842924301, 136.558752166529 35.3082298520575, 136.558764581412 35.3082239288603, 136.559093811595 35.3090655865496)) ^^http://www.opengis.net/ont/geosparql#wktLiteral