メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.365525956048 38.3283366974762, 140.366606668538 38.3278885598636, 140.367185637987 38.3287217146045, 140.368163248249 38.3301636076249, 140.368908993647 38.3314671784365, 140.3680019031 38.3317137339985, 140.366778897086 38.3320128009251, 140.366594108222 38.3314945793728, 140.366998922811 38.3313869508957, 140.36629623813 38.330425057909, 140.365978685494 38.3299676833444, 140.365580822166 38.329437910867, 140.365287552913 38.3295424610627, 140.365002875202 38.3291434951444, 140.364674066925 38.3286876206446, 140.365525956048 38.3283366974762)) ^^http://www.opengis.net/ont/geosparql#wktLiteral