メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.187885393596 35.3662569936032, 137.187931551266 35.3662763519932, 137.188051731662 35.3663129521218, 137.188573977046 35.3664280762532, 137.189347661623 35.3665847049368, 137.189208665806 35.3671812815806, 137.187817594476 35.3666895411175, 137.187227831086 35.3664656915371, 137.18675141474 35.3662790744136, 137.185917763516 35.3658371566792, 137.185980330544 35.3653445393508, 137.186051111083 35.3653847408348, 137.186183927169 35.365460354891, 137.186414988195 35.3656003210828, 137.186863122946 35.365840816695, 137.187238715378 35.366013434157, 137.187716884832 35.3662064572103, 137.187885393596 35.3662569936032)) ^^http://www.opengis.net/ont/geosparql#wktLiteral