メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.300442332866 43.0638865215492, 141.300171133815 43.0640380094887, 141.29990219298 43.0638197265842, 141.299842985907 43.0637716229087, 141.298950166251 43.063052688648, 141.29909492893 43.0629704818624, 141.299405888635 43.0627907027711, 141.300245305806 43.0623215464164, 141.30066930457 43.0621131633819, 141.301008990125 43.0619359389105, 141.30147237891 43.0616545970252, 141.301645532287 43.0618270720216, 141.302195267658 43.062396930461, 141.30248417409 43.0626892184679, 141.302533215839 43.0627434264678, 141.302008108343 43.0630273553258, 141.301558018173 43.0632730117645, 141.301014523734 43.0635731710143, 141.300733751534 43.0637236663047, 141.300442332866 43.0638865215492)) ^^http://www.opengis.net/ont/geosparql#wktLiteral