メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.107633535675 35.3420398502288, 137.107893907899 35.3421345605606, 137.108178741628 35.3421954791055, 137.108373499773 35.342297197465, 137.108822510989 35.3424458028105, 137.108531839207 35.3434732824095, 137.107803958423 35.3433398887227, 137.107288784253 35.3432454723973, 137.105623191659 35.342930315387, 137.106056910076 35.3416258680888, 137.106619827695 35.3417126382538, 137.107212286767 35.3417992801231, 137.107433296367 35.3418823521464, 137.10760480249 35.3420172297992, 137.107633535675 35.3420398502288)) ^^http://www.opengis.net/ont/geosparql#wktLiteral