メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.759854579176 35.4379257147668, 136.760404640631 35.4377768894761, 136.76039491335 35.4385154115683, 136.760436904648 35.4392960392557, 136.758902431019 35.4393214702743, 136.75789429967 35.4393570611181, 136.75632859697 35.4389993402071, 136.756220947374 35.4389748582507, 136.756598896808 35.4388407188536, 136.757623137133 35.4385448192531, 136.758850352163 35.4382059661581, 136.759184009745 35.4381087442406, 136.75924592432 35.4380907135212, 136.759854579176 35.4379257147668)) ^^http://www.opengis.net/ont/geosparql#wktLiteral