メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.38666042983 43.761426839448, 142.38695854815 43.7619714281241, 142.385863136298 43.7623078411446, 142.385773683224 43.7623419474656, 142.385190024088 43.7625187531267, 142.384903114318 43.7619536475925, 142.385019760068 43.7619193877499, 142.384714587296 43.7613371620875, 142.38472863398 43.761333067259, 142.385712266045 43.7610349461572, 142.385686767038 43.7608032131502, 142.385811671886 43.7608030663239, 142.385852070467 43.7609949631601, 142.386591070322 43.7607804172457, 142.38709380506 43.7606266430512, 142.387143572745 43.7612840053534, 142.38666042983 43.761426839448)) ^^http://www.opengis.net/ont/geosparql#wktLiteral