メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.121069805183 35.3437253173915, 137.120903912634 35.3437917318348, 137.119860123209 35.344215476698, 137.119289480433 35.3444458120686, 137.119432069835 35.343376705096, 137.119450122419 35.3433386843408, 137.119473456703 35.3433172148249, 137.119520499273 35.3432982896676, 137.119503432491 35.3432513108608, 137.119484513457 35.3426207334939, 137.120494880339 35.342509447414, 137.120822696623 35.342576831574, 137.120950325467 35.3426576567057, 137.121042124948 35.34270424271, 137.121199099972 35.3436735364751, 137.121069805183 35.3437253173915)) ^^http://www.opengis.net/ont/geosparql#wktLiteral