メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.045304095116 37.6709917410942, 139.042695276733 37.6708886192549, 139.043592515071 37.6702958503698, 139.043742247496 37.6702268787679, 139.044644144119 37.6702739601186, 139.045100565022 37.6703101442295, 139.04556245552 37.6703678415322, 139.045557910534 37.6704788041198, 139.045494905962 37.6706667645266, 139.045394619597 37.6708975581066, 139.045304095116 37.6709917410942)) ^^http://www.opengis.net/ont/geosparql#wktLiteral