メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.768258566113 35.3990929925904, 136.76882544804 35.3991411156626, 136.76884950087 35.3999956920646, 136.768863606144 35.4004943949384, 136.768241999941 35.4005015173435, 136.767885263156 35.400506475925, 136.767531486923 35.4005127105347, 136.766643987489 35.4005466273713, 136.766484838709 35.3997454060764, 136.766411788846 35.3993517885537, 136.767024133288 35.3992676753308, 136.767411215305 35.3992122562241, 136.767728364056 35.3991675928951, 136.767710513355 35.3990289440039, 136.767928011119 35.3990045864409, 136.76795036896 35.3991363489145, 136.768258566113 35.3990929925904)) ^^http://www.opengis.net/ont/geosparql#wktLiteral