メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.778509143524 35.4502118449653, 136.776955907437 35.4503470274727, 136.776966138065 35.450394065884, 136.776522494846 35.4504227061377, 136.776503024108 35.4503469765793, 136.775926987942 35.4503917372808, 136.775856211388 35.4501319379332, 136.775872567211 35.4501307945949, 136.775857622687 35.4499732843469, 136.77589515627 35.4499706598822, 136.776256070842 35.4499379511145, 136.776243153649 35.449850552612, 136.777334756176 35.4497348458671, 136.778339559292 35.4496297645992, 136.778509143524 35.4502118449653)) ^^http://www.opengis.net/ont/geosparql#wktLiteral