メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.85423126885 37.4566572492236, 138.853805171078 37.4567915887619, 138.853335551673 37.455766314161, 138.853283518226 37.4557802684224, 138.853138696416 37.4554415256354, 138.853164680085 37.4554277904013, 138.853654107242 37.4552987552293, 138.853698333001 37.4553846479765, 138.854128434639 37.4552583234901, 138.854297280306 37.4556485246642, 138.854309599561 37.4556770685071, 138.854675932042 37.4565235584663, 138.85423126885 37.4566572492236)) ^^http://www.opengis.net/ont/geosparql#wktLiteral