メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.781186908942 35.2418597899264, 136.780562309612 35.2419560373222, 136.78049517051 35.2413143341214, 136.780147325538 35.2413377997648, 136.780134229526 35.2409457100309, 136.77998106855 35.240468169934, 136.779773607297 35.240510957479, 136.779531156248 35.2399399608081, 136.780527123599 35.2394839834975, 136.781186908942 35.2418597899264)) ^^http://www.opengis.net/ont/geosparql#wktLiteral