メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.227606538493 36.7536322754828, 137.227346882354 36.7536916788104, 137.227369780358 36.7538060811661, 137.226966270495 36.7539234969179, 137.226666788924 36.7535783559325, 137.22650757561 36.753067975277, 137.226311009237 36.753039832195, 137.22625998529 36.7528746080931, 137.225803805406 36.7529624037474, 137.225556895887 36.7525071195617, 137.226054097829 36.7521404921699, 137.226508512423 36.7520541032933, 137.226231439704 36.7507686565284, 137.226750367984 36.7503854675105, 137.227364585528 36.750940345645, 137.227388907284 36.7509799734899, 137.227436371902 36.7512313773756, 137.227526849919 36.7518969009664, 137.227562138308 36.7518947718918, 137.227459673986 36.7521299126047, 137.227447452445 36.7522118032777, 137.227437267773 36.7526326349508, 137.227445229803 36.7527138113934, 137.227461100922 36.752808432151, 137.227606538493 36.7536322754828)) ^^http://www.opengis.net/ont/geosparql#wktLiteral