メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.927452285732 35.1341193065794, 136.927511917413 35.1346519837523, 136.926926761908 35.134685811466, 136.926434992956 35.134724541701, 136.926408395128 35.13422826985, 136.926369527044 35.1338240199508, 136.926369301258 35.133820568759, 136.92668128929 35.1337903500877, 136.927441179058 35.1337544101933, 136.927463005409 35.1341182012648, 136.927452285732 35.1341193065794)) ^^http://www.opengis.net/ont/geosparql#wktLiteral