メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.856707746781 35.094248803496, 138.856651749084 35.0942586883604, 138.85663004018 35.0941926199493, 138.856547010048 35.0942029360448, 138.856533054433 35.0941466348149, 138.856409762392 35.0941695351271, 138.856381998666 35.0940907376274, 138.856491580583 35.0940678777478, 138.856457850221 35.0940062124054, 138.856870407391 35.0939200594573, 138.856940190036 35.0941435327946, 138.856686990872 35.0941854799871, 138.856707746781 35.094248803496)) ^^http://www.opengis.net/ont/geosparql#wktLiteral