メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.737431831287 35.2295495697695, 136.736366921536 35.2297537878249, 136.735909121108 35.2282469910777, 136.735750460713 35.2276626476232, 136.735560828732 35.2271661584077, 136.735657367121 35.2270876203281, 136.736593253063 35.2268094303407, 136.736682354988 35.2270513140535, 136.736750924353 35.2272398825069, 136.736920947573 35.2277455242291, 136.737216838015 35.2287812933774, 136.737402227275 35.2294505146416, 136.737431831287 35.2295495697695)) ^^http://www.opengis.net/ont/geosparql#wktLiteral