メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.890779973671 35.2490277720962, 136.890327280697 35.2491099025608, 136.89000298536 35.2491441569249, 136.889759687158 35.2491528218967, 136.889490174494 35.249164525008, 136.889393089966 35.2490997940628, 136.888797026377 35.249114544284, 136.888684844753 35.2490835809829, 136.888484583168 35.2490907942581, 136.888501028505 35.2483900528345, 136.889472380534 35.2483952529834, 136.88950701843 35.2483954031201, 136.890647108773 35.248209994921, 136.890775955619 35.2490041709978, 136.890779973671 35.2490277720962)) ^^http://www.opengis.net/ont/geosparql#wktLiteral