メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.069074283813 35.2434399376799, 137.068653378783 35.2437604464698, 137.067845089161 35.2420696029726, 137.068453691 35.2420561585541, 137.068803704176 35.2420564446049, 137.0692612424 35.2420568170048, 137.069732515042 35.2420571987753, 137.069727476946 35.2424400914551, 137.06970662001 35.2426633894054, 137.069583888403 35.2429420293188, 137.069439544116 35.2431333255601, 137.069281507056 35.2432871443726, 137.069074283813 35.2434399376799)) ^^http://www.opengis.net/ont/geosparql#wktLiteral