メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.772192121702 35.4470261342342, 136.772184540845 35.4472573002916, 136.769229964225 35.447650187428, 136.769185192406 35.4474007893094, 136.76916190456 35.4472712455509, 136.769423391228 35.4472345668779, 136.769401088122 35.4471323498072, 136.77057262421 35.4469958990392, 136.771007672704 35.4469526355866, 136.771164800123 35.4469280772332, 136.77124229019 35.4469284701367, 136.772193183821 35.4468080809734, 136.772196706385 35.4468445001238, 136.772192121702 35.4470261342342)) ^^http://www.opengis.net/ont/geosparql#wktLiteral