メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.524079898206 37.8618410109839, 140.52356479963 37.8618796481564, 140.523214253317 37.8618786037716, 140.522902063897 37.8618156713055, 140.522655157002 37.8616502908612, 140.523098529722 37.8615798400093, 140.523348059229 37.8616123068901, 140.523485393335 37.8617196222367, 140.523792583445 37.8616653104409, 140.523939192393 37.8617247062487, 140.524079898206 37.8618410109839)) ^^http://www.opengis.net/ont/geosparql#wktLiteral