メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.92681680045 35.158767531185, 136.926601323707 35.1589622386266, 136.925735072844 35.1588411783082, 136.925816702091 35.1582700655748, 136.926204043972 35.1585303661899, 136.926553338427 35.1584750186824, 136.926813370476 35.158709072023, 136.92689904702 35.1586919212128, 136.92681680045 35.158767531185)) ^^http://www.opengis.net/ont/geosparql#wktLiteral