メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.774169995892 43.2020057133835, 140.774329618303 43.2021117898202, 140.773572187545 43.2026570948123, 140.773155388037 43.2031374600046, 140.772670927575 43.2036406481531, 140.771641152686 43.2035787986236, 140.771417065062 43.2035664739138, 140.77144715002 43.2032402618995, 140.771452540092 43.2025830481247, 140.772690538241 43.2019076090107, 140.772584032057 43.2018075626113, 140.773941278287 43.200854173749, 140.774020189574 43.201245439466, 140.77415185036 43.2019767854287, 140.774169995892 43.2020057133835)) ^^http://www.opengis.net/ont/geosparql#wktLiteral