メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.142023464523 34.6546135247697, 135.142052199207 34.6546322083098, 135.14249685027 34.6549222376474, 135.141808609116 34.6556660290849, 135.141666005502 34.6555858422816, 135.141183305642 34.6553095856458, 135.140807493746 34.655086706419, 135.14104219675 34.6548214646311, 135.141190723951 34.6546694801027, 135.141326096434 34.6545322318607, 135.141347365302 34.6545106803904, 135.141544498254 34.6543087910568, 135.141577377335 34.6543243487884, 135.142023464523 34.6546135247697)) ^^http://www.opengis.net/ont/geosparql#wktLiteral