メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.364132494733 43.1095591373165, 141.364092799951 43.1097619306271, 141.364069695812 43.1098861577855, 141.363467278961 43.1099314313021, 141.363503051124 43.1098274848671, 141.363485940467 43.1098291114537, 141.362843252189 43.1097387634094, 141.362722955514 43.1097468339153, 141.362775278183 43.1095207902342, 141.362804328264 43.1093772701315, 141.362809484468 43.1093593067027, 141.362923544534 43.1089396422918, 141.363318826159 43.1089993132975, 141.363752075636 43.1090620184174, 141.364229347553 43.1091339944546, 141.364132494733 43.1095591373165)) ^^http://www.opengis.net/ont/geosparql#wktLiteral