メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.127056415083 38.4732299404148, 141.124156607921 38.4739222918603, 141.124238266837 38.4741297233078, 141.123388674233 38.4743545253504, 141.123510887332 38.4749912010207, 141.118747771389 38.4754039510003, 141.118479006318 38.4732861784995, 141.120196575769 38.473166553429, 141.120137473663 38.4726376888898, 141.121541825853 38.4725228935681, 141.12161459803 38.4730197684148, 141.122795580001 38.4729298632797, 141.122697237915 38.4726798188042, 141.126303942751 38.4716839304475, 141.126508427655 38.4722982971146, 141.126523383266 38.4723431642629, 141.127056415083 38.4732299404148)) ^^http://www.opengis.net/ont/geosparql#wktLiteral