メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.627683172118 35.4550291914299, 139.626644925854 35.456317727955, 139.626482783441 35.4562205580242, 139.626135861376 35.4560955079643, 139.625976772546 35.4559745415573, 139.625952891105 35.4558640465749, 139.626867662797 35.4547176282617, 139.626942147894 35.4546180741978, 139.627214459725 35.4547631378328, 139.627683172118 35.4550291914299)) ^^http://www.opengis.net/ont/geosparql#wktLiteral