メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.29310206638 43.0583809933617, 141.293151814619 43.0584198791414, 141.293372103359 43.0585997942139, 141.293642072537 43.058816836652, 141.293784276725 43.0589299190417, 141.293942733792 43.059058680143, 141.29409144385 43.0591789894089, 141.294281230481 43.0593284772572, 141.293440246684 43.059880140075, 141.292863766699 43.0602657133513, 141.292636293587 43.0604179003352, 141.29256096174 43.0603712042096, 141.29172145103 43.060986374057, 141.291713680592 43.0609803306468, 141.291544991406 43.0609234983439, 141.291425123942 43.0594996691509, 141.291367355938 43.0584671074442, 141.292851764712 43.0581884478246, 141.293048720981 43.0583391229741, 141.29310206638 43.0583809933617)) ^^http://www.opengis.net/ont/geosparql#wktLiteral