メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.553358971078 43.2394411573604, 143.552728767327 43.2394667784209, 143.55233444406 43.2394840082798, 143.552324690605 43.2393964891273, 143.552267888963 43.2383654773976, 143.553065572225 43.2383315471404, 143.554292368003 43.238279345653, 143.554381159847 43.2392842505748, 143.554393040478 43.2393991739233, 143.553358971078 43.2394411573604)) ^^http://www.opengis.net/ont/geosparql#wktLiteral