メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.933433366227 35.0856450450711, 136.933204119575 35.0855607954515, 136.931810465776 35.0850487006707, 136.932503212532 35.0837192282677, 136.932752185617 35.0838395758658, 136.932684413539 35.0839870628345, 136.932757295264 35.0840195302661, 136.93290912528 35.0839136866303, 136.933891341072 35.0845644986265, 136.933827425719 35.0846813577953, 136.933931218679 35.0847203628332, 136.933433366227 35.0856450450711)) ^^http://www.opengis.net/ont/geosparql#wktLiteral