メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.077955394339 35.2369397283608, 137.077191854282 35.2385795603832, 137.07683404858 35.2384018966994, 137.076526514921 35.2382656081039, 137.07615150616 35.2381283533988, 137.076510444672 35.2372718384247, 137.076593315507 35.236804494319, 137.077668323031 35.2369160653649, 137.077955394339 35.2369397283608)) ^^http://www.opengis.net/ont/geosparql#wktLiteral