メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.948344932635 39.6453139184653, 141.949010372711 39.6454702086189, 141.949583240537 39.6456430795281, 141.949441298804 39.645815862584, 141.949303249885 39.6459536367279, 141.949201220832 39.6460840267067, 141.949167006094 39.6462033137859, 141.949164710468 39.6463432641459, 141.949197791475 39.6464303783889, 141.949180524911 39.6464830392949, 141.949127376004 39.6465570160561, 141.94874360228 39.6468895411583, 141.948429191795 39.6470359761456, 141.947535269123 39.646738468365, 141.946638787777 39.6464287681519, 141.946583252357 39.6463488349583, 141.945701106379 39.6460809192004, 141.946087493784 39.6453496073945, 141.946297086495 39.6450135225473, 141.947242307498 39.6451403987559, 141.947827720386 39.6452279399884, 141.948344932635 39.6453139184653)) ^^http://www.opengis.net/ont/geosparql#wktLiteral