メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.763840275348 35.3972098584846, 136.762428469183 35.397387073002, 136.762355490366 35.3969839429212, 136.761134060109 35.397142127319, 136.760673764645 35.3967501681292, 136.762280746926 35.3965296817256, 136.762177535906 35.3959381413447, 136.763573699041 35.3957625000763, 136.763671064553 35.39635556753, 136.763840275348 35.3972098584846)) ^^http://www.opengis.net/ont/geosparql#wktLiteral