メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.128295632876 43.1209476160113, 144.128630094029 43.1218753531831, 144.128897843244 43.1226181015976, 144.127284550945 43.1230145749123, 144.126877512271 43.1231036769975, 144.124167754146 43.1237652904849, 144.122921638777 43.1226424850564, 144.122921200993 43.1226419116109, 144.122693291163 43.1223434593806, 144.122356691848 43.1213867660601, 144.123233027315 43.1211914689162, 144.124495990572 43.1208993200618, 144.125317750588 43.1207092625633, 144.12720028317 43.1203598761984, 144.127994986902 43.1201897232322, 144.12823835132 43.1207887051027, 144.128295632876 43.1209476160113)) ^^http://www.opengis.net/ont/geosparql#wktLiteral