メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.618713089628 35.4358622476785, 139.618909978597 35.4359134750259, 139.619531093939 35.4360813965262, 139.619391627126 35.4363706482567, 139.61931343609 35.4365488490033, 139.618694492039 35.4363888524006, 139.618051383884 35.4362236692238, 139.618146042646 35.4360168725596, 139.618255533986 35.4357848409688, 139.618273006256 35.4357478108624, 139.618713089628 35.4358622476785)) ^^http://www.opengis.net/ont/geosparql#wktLiteral