メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.168932393397 34.2344651239607, 135.168197499083 34.2344577642765, 135.168197152124 34.2353336895677, 135.167738325691 34.2350357468654, 135.167886360401 34.2350385791361, 135.167861097265 34.2337991778646, 135.168110948133 34.2337960777331, 135.16809536099 34.2336125595102, 135.168528127322 34.2336178783018, 135.168538043524 34.2337917791268, 135.16893305339 34.2337992360997, 135.169569361008 34.233793811166, 135.168932393397 34.2344651239607)) ^^http://www.opengis.net/ont/geosparql#wktLiteral