メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.729168229495 35.2460643840983, 136.728017988737 35.2463379699271, 136.727532602855 35.2453381064475, 136.727489621347 35.2452375272867, 136.727499912558 35.2450880515258, 136.728474589792 35.2451816735026, 136.728541567033 35.2454974154165, 136.729033067763 35.2454170504874, 136.729048851138 35.2455152092108, 136.729083875149 35.2455711103199, 136.729168229495 35.2460643840983)) ^^http://www.opengis.net/ont/geosparql#wktLiteral