メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.850374798036 35.4125229653153, 136.851370019625 35.4126131771214, 136.851170214478 35.4141167725033, 136.850945320724 35.415748009534, 136.849980353107 35.4156662925591, 136.848967286308 35.4155718703221, 136.849173027462 35.4139418150919, 136.849368098425 35.4124373985461, 136.850374798036 35.4125229653153)) ^^http://www.opengis.net/ont/geosparql#wktLiteral