メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.937802896256 37.5779072429863, 138.935137875632 37.5786598830163, 138.934996640375 37.5783748762829, 138.933590491213 37.5788188770304, 138.933799167745 37.5792783634042, 138.933039530864 37.579343368929, 138.932903402609 37.5791526701716, 138.932277806316 37.5783010507198, 138.930616348236 37.5759823572752, 138.929567946974 37.5744454879635, 138.930408088393 37.5739779708153, 138.931424586822 37.5734278643711, 138.931938461105 37.5735379201383, 138.931743012577 37.5740216866459, 138.932056889599 37.574271854198, 138.932260310999 37.5741263799964, 138.932435762814 37.5738934332207, 138.932553943048 37.5736982893816, 138.932720464946 37.5736950051432, 138.93275299922 37.5736853134203, 138.93287362452 37.5735840654469, 138.933246096048 37.5737726318195, 138.933425546215 37.5738406815345, 138.933638117804 37.573908469202, 138.933817445955 37.5739553996723, 138.934058208055 37.5743080446713, 138.935868611236 37.5737393506008, 138.936845029344 37.5757124616732, 138.93732509636 37.5767214306819, 138.937668105769 37.5775383041263, 138.937735911551 37.5777966865022, 138.937802896256 37.5779072429863)) ^^http://www.opengis.net/ont/geosparql#wktLiteral