メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.468617666599 34.886873368401, 137.469110298625 34.8870721519451, 137.468944530853 34.8873640629824, 137.468497519838 34.8878368985145, 137.468331284398 34.8882883969195, 137.467128172826 34.8880437657972, 137.466909630079 34.8878992980296, 137.466330733295 34.8875166941848, 137.466676228972 34.8871416609354, 137.466964065356 34.8868292373472, 137.467246623416 34.8865225305916, 137.467287418036 34.8864531989108, 137.467443501177 34.8859187588141, 137.468087150857 34.8864398015653, 137.468326597111 34.8866336557473, 137.468579683085 34.8868580399203, 137.468617666599 34.886873368401)) ^^http://www.opengis.net/ont/geosparql#wktLiteral