メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.926894445292 35.4767678267677, 136.926919633276 35.4772412946473, 136.926930587903 35.4778271647958, 136.926132292301 35.4778452955218, 136.925635726016 35.4778531787791, 136.924901745106 35.4778980494207, 136.925174082377 35.4773475698786, 136.925545643166 35.4765389770248, 136.925996915685 35.4756570904754, 136.926899639285 35.475835719547, 136.926894445292 35.4767678267677)) ^^http://www.opengis.net/ont/geosparql#wktLiteral