メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.737802243135 35.4599592381774, 136.737555903811 35.4599608302401, 136.737454240616 35.4601582765697, 136.737369344501 35.4603103274523, 136.737275565449 35.4604328767646, 136.737138141768 35.4605810781107, 136.735860410937 35.4616516593317, 136.735664428371 35.4617885613526, 136.734260349756 35.4595215301073, 136.737464589978 35.4582095768987, 136.737802933708 35.4592613190161, 136.737802243135 35.4599592381774)) ^^http://www.opengis.net/ont/geosparql#wktLiteral