メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.36536753035 43.7339105450203, 142.365141035397 43.7339915195414, 142.36501767365 43.7341852535919, 142.364796806627 43.7345592658306, 142.364581893972 43.7344988313816, 142.363833989867 43.7342864912296, 142.364063565443 43.733879843029, 142.364491720969 43.7331214642861, 142.365065660225 43.7321170771262, 142.365379063493 43.731568629558, 142.36618878632 43.7317862605495, 142.366100928223 43.7319560678091, 142.3654385338 43.7331666919297, 142.365290475905 43.733723640045, 142.36536753035 43.7339105450203)) ^^http://www.opengis.net/ont/geosparql#wktLiteral