メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.152584394313 35.1097616073974, 137.153129056046 35.1095660539545, 137.153484071849 35.1102142480367, 137.153128010801 35.1101214381402, 137.153104547415 35.1101806620971, 137.15313752183 35.1102977178748, 137.153193069764 35.110537529478, 137.152526068524 35.1104645969198, 137.152584394313 35.1097616073974)) ^^http://www.opengis.net/ont/geosparql#wktLiteral