メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.998302223552 36.7535595250517, 136.99845068238 36.7538046093879, 136.998753095345 36.7542987305124, 136.996444965064 36.7551721872883, 136.996414622365 36.7551836902276, 136.995681427181 36.755461593314, 136.995650831955 36.7554732362789, 136.994181157026 36.7560293063084, 136.993743297584 36.7553069940343, 136.993161462944 36.7536665688842, 136.993424952364 36.753550921461, 136.993579598502 36.7534931299405, 136.9950591241 36.7529246921527, 136.99551040825 36.7537161585959, 136.996123431326 36.7534747669821, 136.997220632984 36.7530407905293, 136.997861865554 36.7528086453363, 136.998302223552 36.7535595250517)) ^^http://www.opengis.net/ont/geosparql#wktLiteral