メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.843424427667 37.7703400493603, 140.843130793998 37.7707622412324, 140.842764254845 37.7711121325943, 140.8423692243 37.7713755442454, 140.842035795541 37.7715977410895, 140.842125592246 37.771236141964, 140.842384922473 37.7708928017751, 140.842572549254 37.7707024048409, 140.84285277977 37.7705399333716, 140.843200116349 37.7704279900933, 140.843424427667 37.7703400493603)) ^^http://www.opengis.net/ont/geosparql#wktLiteral