メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.695599227709 44.3676315842501, 141.695436120431 44.3677405529428, 141.695324485845 44.3677132899125, 141.694440598853 44.3685247418002, 141.694530335851 44.3685872304766, 141.694297212691 44.3687557997943, 141.694022552537 44.3681963741732, 141.694220866716 44.3680133630638, 141.693992035452 44.3674436826857, 141.693856668174 44.3673606844917, 141.693723548998 44.3672786817434, 141.694838140486 44.3665527359187, 141.695982645864 44.3658012602861, 141.697194878456 44.3650052800386, 141.697267535534 44.3650649427275, 141.698037562691 44.3656646292458, 141.698274534126 44.3658511636288, 141.697115202438 44.366618685223, 141.695599227709 44.3676315842501)) ^^http://www.opengis.net/ont/geosparql#wktLiteral