メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.769573243804 35.4058909731307, 136.76935801937 35.4061760387535, 136.769207673524 35.4063506131741, 136.76904572211 35.4065412770593, 136.768859861473 35.4067312280607, 136.768543746798 35.4070322289626, 136.768440022173 35.4071269578781, 136.768449251706 35.4067274924199, 136.768493859118 35.4062527923558, 136.768511567331 35.405860607971, 136.768545648776 35.4054011545547, 136.768551095282 35.4053603279761, 136.768553417783 35.4053429424752, 136.769870497552 35.4053911817153, 136.769719727467 35.4056616689568, 136.769573243804 35.4058909731307)) ^^http://www.opengis.net/ont/geosparql#wktLiteral