メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.36522648458 43.0464649372623, 141.365164427953 43.0466729153105, 141.365148298792 43.0467343299601, 141.365030820637 43.0472090633285, 141.364962822589 43.0474734501495, 141.3649035968 43.0477037277372, 141.364863131949 43.0478610620699, 141.364739005866 43.0484043154552, 141.364649414246 43.0487396598843, 141.364449354562 43.0477207887777, 141.364279943782 43.0468982340313, 141.36422991633 43.0466629441811, 141.364077910789 43.0458307482054, 141.364310634709 43.0458241807527, 141.365342506479 43.0459579805116, 141.36522648458 43.0464649372623)) ^^http://www.opengis.net/ont/geosparql#wktLiteral