メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.399840163605 43.767594598857, 142.399806753331 43.7675967521094, 142.399273455624 43.7676302650579, 142.398040788025 43.7676901849288, 142.398004402361 43.7672161749713, 142.397531457271 43.7672386668177, 142.39644569022 43.7673075061439, 142.396423757759 43.7671479911606, 142.396386732681 43.7668232556291, 142.396604522024 43.766798594998, 142.397770247191 43.7667254861193, 142.397791847473 43.7667241397905, 142.399180425081 43.766649412339, 142.399738878688 43.7666195235191, 142.400463508672 43.7666017390124, 142.400556377558 43.7675483619262, 142.399840163605 43.767594598857)) ^^http://www.opengis.net/ont/geosparql#wktLiteral