メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.754386447232 35.4171723402138, 136.754242981245 35.4171768535545, 136.754233336756 35.4172716768233, 136.753288808587 35.417084953693, 136.753322262151 35.4167069087152, 136.753291780756 35.4167043055252, 136.753311142442 35.4164921589143, 136.753481858245 35.4165252044499, 136.753549665396 35.4160985448107, 136.754498910782 35.4163539084706, 136.754494346574 35.4166509612852, 136.754418063281 35.4166557034591, 136.754386447232 35.4171723402138)) ^^http://www.opengis.net/ont/geosparql#wktLiteral