メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.520834712537 43.8582769035712, 141.520773709021 43.8583902660918, 141.520220578923 43.8584024275392, 141.519981122297 43.858266314696, 141.519611977584 43.8578429425403, 141.519285176076 43.8577610151625, 141.51851764599 43.8575756664423, 141.518041232099 43.8575255473316, 141.518020855297 43.8574155863106, 141.517101690189 43.8572214168855, 141.51724619335 43.8569320801661, 141.521012853484 43.8578936358475, 141.520834712537 43.8582769035712)) ^^http://www.opengis.net/ont/geosparql#wktLiteral