メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.149884707727 34.6559817349001, 135.150208619359 34.6561936635939, 135.150103320928 34.6563025484051, 135.149946758497 34.6564681198737, 135.14986580516 34.6565565586423, 135.149460904245 34.6569852257972, 135.149022028135 34.6567312441135, 135.148525220589 34.6564100373666, 135.148986799069 34.6559201432311, 135.14928903856 34.6555913291925, 135.149845348249 34.6559574893255, 135.149884707727 34.6559817349001)) ^^http://www.opengis.net/ont/geosparql#wktLiteral