メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.748210815241 37.7747227089143, 140.748626854714 37.7747469272675, 140.749194868349 37.7747616561963, 140.749495983627 37.7748367455581, 140.749829386144 37.7749049656503, 140.750155114123 37.7750053427905, 140.750635121255 37.7751174701333, 140.750839194166 37.7752189357015, 140.750913528049 37.7753278870508, 140.750982583998 37.7756621364254, 140.750978970779 37.7760291928014, 140.750894416111 37.7762407481869, 140.750201394068 37.7761222563828, 140.749851200431 37.7760089760067, 140.749459680814 37.7758381540609, 140.749140864236 37.7756443801728, 140.748801311999 37.7754086707318, 140.748663731696 37.7755136397872, 140.748422058728 37.7756491247203, 140.748329767781 37.7757302299052, 140.748228961102 37.7757826818649, 140.748116994731 37.7757931262853, 140.74787545393 37.7757094054419, 140.74772061738 37.77563796204, 140.747614453547 37.7753711528624, 140.747575506142 37.775168724345, 140.747622279768 37.7750137791336, 140.747718363808 37.7749164535762, 140.747935876335 37.7747924223966, 140.748210815241 37.7747227089143)) ^^http://www.opengis.net/ont/geosparql#wktLiteral