メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.056450388749 39.389300997039, 140.056392472044 39.3891517739198, 140.056354081588 39.3890324472872, 140.056312867026 39.3888736234178, 140.058077558446 39.3886063987362, 140.058248503498 39.3885805038532, 140.058342752327 39.3890358824413, 140.057923185791 39.3890920851333, 140.057419465962 39.3891647601619, 140.057148354366 39.3892035029368, 140.056450388749 39.389300997039)) ^^http://www.opengis.net/ont/geosparql#wktLiteral