メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.207902853058 36.6984771395924, 137.208217867375 36.698902912446, 137.207943159292 36.6990284051894, 137.207834655676 36.6990806869687, 137.206944023978 36.6994742235409, 137.206204219401 36.6996966837941, 137.206164015921 36.6996408666935, 137.205208602981 36.700019484138, 137.204895233559 36.6995674428289, 137.204738554865 36.6993370556492, 137.205320596193 36.6990712187442, 137.205672344434 36.6989150075634, 137.205624540262 36.6987882938931, 137.20683640982 36.6984568223165, 137.207778530888 36.6982495613051, 137.207902853058 36.6984771395924)) ^^http://www.opengis.net/ont/geosparql#wktLiteral