メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.082082368205 43.5412716100457, 142.081001738061 43.5411214913934, 142.081220566786 43.5398378769302, 142.081374184646 43.5387923879069, 142.082592711991 43.538887363233, 142.082500886348 43.5394409590078, 142.082251970822 43.5394251849921, 142.082082368205 43.5412716100457)) ^^http://www.opengis.net/ont/geosparql#wktLiteral