メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.607218484973 35.3557301925975, 136.607164871674 35.3557392390562, 136.606215753872 35.3558992662878, 136.605234476201 35.3560668832069, 136.605240583569 35.3561035316986, 136.605054495284 35.3561397073671, 136.604978207458 35.3557666719751, 136.60497475641 35.3557498949497, 136.60566103761 35.355624710608, 136.605646368386 35.3555209091448, 136.60633157137 35.3553895901133, 136.606376160705 35.355193316787, 136.606873404443 35.3551077400751, 136.606919695428 35.3552630265348, 136.607093058337 35.3552207333385, 136.607218484973 35.3557301925975)) ^^http://www.opengis.net/ont/geosparql#wktLiteral