メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.526516580469 35.8783532238833, 139.527025390029 35.8788653406689, 139.527341156448 35.8791095747926, 139.527688630764 35.8792537921048, 139.528687613756 35.8796601955775, 139.528105795259 35.8806545413005, 139.527348679827 35.8810629186712, 139.52667788984 35.8801194168759, 139.526297406023 35.8803518204155, 139.525664323704 35.8794623754191, 139.525406084039 35.8790820816119, 139.524706455751 35.8780937717599, 139.525667881799 35.8775164790825, 139.526516580469 35.8783532238833)) ^^http://www.opengis.net/ont/geosparql#wktLiteral