メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.336096402405 43.0599489611765, 141.335822596975 43.0610829435977, 141.334263400689 43.0608644012107, 141.334359091064 43.0604543026989, 141.334400997326 43.0602744546421, 141.334448223752 43.0600722841908, 141.334529161864 43.0597252237675, 141.334665810631 43.0592179071261, 141.33528423453 43.0592962093432, 141.335295202145 43.0592552949209, 141.33572967518 43.0593202374752, 141.335712894096 43.0594103365057, 141.336032506117 43.0594467902939, 141.336061397059 43.0593679704961, 141.336260562531 43.0593967101133, 141.336096402405 43.0599489611765)) ^^http://www.opengis.net/ont/geosparql#wktLiteral