メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.368118967844 43.7284113806644, 142.367823053279 43.7289031729777, 142.36740435795 43.7296266193854, 142.366354907237 43.7293220425834, 142.36662005389 43.7288404286915, 142.367061104293 43.7280925953235, 142.367436530565 43.7274494126684, 142.367570491082 43.7272055630702, 142.367921686398 43.7265933660187, 142.367952862657 43.7265390284119, 142.368984115906 43.7268649355455, 142.368808332911 43.7272002273061, 142.368118967844 43.7284113806644)) ^^http://www.opengis.net/ont/geosparql#wktLiteral