メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.344831457363 43.0311434365966, 141.344818374357 43.0311856717303, 141.344796688839 43.0314871467954, 141.344775917732 43.0317915134055, 141.34475870516 43.0318994748113, 141.344733519515 43.0320541426781, 141.344705256577 43.0322681454172, 141.343262282949 43.0321806222507, 141.343261239507 43.0320170965742, 141.343303572414 43.031700734504, 141.343303904688 43.0316781612183, 141.343346326626 43.031388314238, 141.343365215473 43.0312773424455, 141.343382636405 43.0311423751403, 141.343399404362 43.0310127491108, 141.343414657431 43.0309012551725, 141.343443115288 43.030693865514, 141.34486307434 43.0307924573032, 141.344831457363 43.0311434365966)) ^^http://www.opengis.net/ont/geosparql#wktLiteral