メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.655239183869 43.9390827998294, 141.655783523766 43.9394967486196, 141.655163753421 43.9399278702923, 141.654733990983 43.9402268074174, 141.654496623273 43.940393882543, 141.654462501138 43.9403999891621, 141.653929672081 43.9404749525004, 141.65277953088 43.9406064362578, 141.652742484224 43.9404284091655, 141.652710000857 43.9403534585868, 141.652481018316 43.9401928776688, 141.652532951941 43.9401573181157, 141.653038556576 43.9398172683478, 141.653611837808 43.9394238081636, 141.653849425545 43.9392492814789, 141.653873590111 43.9392315252401, 141.654159824803 43.9390334951006, 141.654696059882 43.9386647360618, 141.655239183869 43.9390827998294)) ^^http://www.opengis.net/ont/geosparql#wktLiteral