メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.957921189593 43.542810073039, 144.957829664903 43.5427479721364, 144.957904915548 43.5426885258237, 144.958187632926 43.5424568044403, 144.958329538523 43.5423489124403, 144.958635387143 43.5424003773058, 144.958615069729 43.5424991999542, 144.958549012153 43.5428198030475, 144.958543597721 43.5428457025051, 144.957921189593 43.542810073039)) ^^http://www.opengis.net/ont/geosparql#wktLiteral