メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.48453321238 39.1593045003075, 140.484745767126 39.1593312449343, 140.484679215498 39.1596618903974, 140.48435478315 39.1596226369179, 140.484391279195 39.1594851582736, 140.484485241699 39.1594959253022, 140.48453321238 39.1593045003075)) ^^http://www.opengis.net/ont/geosparql#wktLiteral