メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.807741177695 43.3916860971099, 144.80792129546 43.3918140932903, 144.808484694335 43.3921406036262, 144.808558634015 43.3921882083907, 144.80920152439 43.3926023828699, 144.811004955015 43.3937642935727, 144.812346418379 43.3946994123854, 144.807663126947 43.3984864585095, 144.803418554164 43.3955756548347, 144.80315580922 43.3953953856753, 144.802743928093 43.3951128953107, 144.80326728541 43.3947389800496, 144.807322095413 43.3913882092502, 144.807741177695 43.3916860971099)) ^^http://www.opengis.net/ont/geosparql#wktLiteral