メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.187733919456 35.3631144683493, 137.187656971522 35.3632072975863, 137.187389795964 35.3636294561542, 137.187147154785 35.3640421020328, 137.186781963718 35.36463758453, 137.186208115614 35.3644119666362, 137.186302473029 35.3635727240699, 137.186364363694 35.3630840500097, 137.186457737829 35.3623521311708, 137.187201076214 35.3627925804803, 137.187733919456 35.3631144683493)) ^^http://www.opengis.net/ont/geosparql#wktLiteral