メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.069744533314 35.2406073854514, 137.069258388095 35.2406154427134, 137.068812317322 35.2406075447471, 137.068365072737 35.2406118270009, 137.067790881088 35.2406095245056, 137.067843829592 35.2397410260982, 137.067871912841 35.239280263496, 137.067877255023 35.2391925903099, 137.068380523179 35.2391948341735, 137.068806008525 35.2391914489378, 137.069246376998 35.2391870890212, 137.069740502748 35.2391893901216, 137.069744533314 35.2406073854514)) ^^http://www.opengis.net/ont/geosparql#wktLiteral