メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.379222085931 34.9844887760608, 138.37924387492 34.9844144271306, 138.379395454223 34.9845157086943, 138.379561547793 34.9845812271958, 138.379882845167 34.9847570436408, 138.379895310534 34.9848803726197, 138.37959546342 34.9848712054956, 138.379496496368 34.9858522900955, 138.378990709444 34.9858429195621, 138.379003846206 34.9855024913378, 138.37852335501 34.9854871580444, 138.378461969429 34.9854722368538, 138.378477271087 34.9848805292472, 138.378448396473 34.9848626824824, 138.378506879183 34.9844017992923, 138.378795845734 34.9844407488922, 138.379222085931 34.9844887760608)) ^^http://www.opengis.net/ont/geosparql#wktLiteral