メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.040732032551 35.1988042719069, 137.041222843207 35.1989391617143, 137.043519361776 35.1996179848283, 137.043313001309 35.2001407372764, 137.042111069943 35.2003182889973, 137.040862086354 35.2004957786104, 137.040226860162 35.2005765835145, 137.040017096111 35.199566693613, 137.039950050488 35.1992812675193, 137.039896472434 35.1990097962817, 137.039839510521 35.1987438155968, 137.039768990746 35.1985192994306, 137.039821259663 35.1985347785544, 137.040732032551 35.1988042719069)) ^^http://www.opengis.net/ont/geosparql#wktLiteral