メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.395660300752 43.7717446282066, 142.39572692393 43.7717439141158, 142.397003215142 43.7719212318434, 142.399176285804 43.7726923423868, 142.399639798352 43.7728232798397, 142.398712852578 43.7736064684218, 142.398510484933 43.7737774465717, 142.397591558076 43.774567492204, 142.397403991588 43.7747287487289, 142.397003665012 43.7750729174587, 142.396988775472 43.7750514531229, 142.396486794416 43.7754723183401, 142.395074300051 43.772966457816, 142.394387868528 43.7717486014554, 142.395269435126 43.7717488152691, 142.395660300752 43.7717446282066)) ^^http://www.opengis.net/ont/geosparql#wktLiteral