メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.157710949766 35.0908834067847, 137.157911969434 35.0913985986126, 137.156727717571 35.0915884145233, 137.155622553832 35.0917751299673, 137.155548469069 35.0917861793271, 137.155426467289 35.0912881715933, 137.155425676008 35.0912849361492, 137.155237936024 35.0904697947585, 137.155513612961 35.0904806746296, 137.156020643623 35.0904982003972, 137.15646950083 35.0904197955946, 137.157297663527 35.0901747303783, 137.157428857345 35.0901307266324, 137.157710949766 35.0908834067847)) ^^http://www.opengis.net/ont/geosparql#wktLiteral