メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.320903478993 43.059671873199, 141.320772537973 43.06023794332, 141.320046308822 43.0601412476926, 141.31985592172 43.0601158589191, 141.319417621459 43.0600574378827, 141.319482151966 43.0597671529177, 141.319525937492 43.059586481821, 141.319563487051 43.059418489885, 141.319667975461 43.0589657875972, 141.319688401398 43.0588772684035, 141.321046895905 43.0590606117779, 141.320903478993 43.059671873199)) ^^http://www.opengis.net/ont/geosparql#wktLiteral