メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.160176311318 34.6709129493236, 135.159873765491 34.6712124948982, 135.158786277501 34.670482914668, 135.1590941851 34.6701743222409, 135.15922079246 34.6700389449875, 135.159375400615 34.6698821088555, 135.159690967992 34.6695640248747, 135.159902657725 34.6697293606197, 135.160118858093 34.6698767761301, 135.160449213526 34.6701020132043, 135.160701917695 34.6702766466193, 135.160776423669 34.6703281155586, 135.160176311318 34.6709129493236)) ^^http://www.opengis.net/ont/geosparql#wktLiteral