メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.637300308339 35.4402783803105, 139.637860793021 35.4406831592138, 139.637405960737 35.4411005654235, 139.63684704226 35.4406969117425, 139.636314656172 35.4403108698859, 139.635742344324 35.4398911721827, 139.635417728189 35.4396581631551, 139.635892408251 35.4392202347757, 139.636299570891 35.4388445192698, 139.636628282701 35.4390729523981, 139.636946945734 35.4392955280988, 139.63720359691 35.4394790955177, 139.636759464843 35.4398936657012, 139.637300308339 35.4402783803105)) ^^http://www.opengis.net/ont/geosparql#wktLiteral