メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.913412697605 35.5351245096911, 136.913434836351 35.5351801868633, 136.913343122308 35.5352024254009, 136.912688197762 35.5353173482787, 136.912642562918 35.5349564289068, 136.912588716125 35.534320575157, 136.912589033676 35.5342186808373, 136.913025209971 35.5341839285978, 136.913142045094 35.5344440528472, 136.913412697605 35.5351245096911)) ^^http://www.opengis.net/ont/geosparql#wktLiteral