メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.372557400969 43.7369327381527, 142.373045883662 43.7370828108729, 142.373590456085 43.7372417000971, 142.373569023899 43.7372774819109, 142.37316357948 43.7380005212522, 142.372709435542 43.7388104226057, 142.372144521159 43.7386459252571, 142.372053184748 43.7386193353803, 142.371653703262 43.7384957982539, 142.371377903651 43.7384105077798, 142.37113855667 43.7383395070075, 142.371379404658 43.7379332166822, 142.371614754704 43.7375362322976, 142.372062057903 43.7367816498302, 142.372200545794 43.7368218499572, 142.372260171463 43.7368403696483, 142.372557400969 43.7369327381527)) ^^http://www.opengis.net/ont/geosparql#wktLiteral