メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.748165106853 35.3681352401141, 136.746098000719 35.3682343306022, 136.745975748963 35.3662129460653, 136.746300028628 35.3663201789981, 136.746491939304 35.3663732282285, 136.746701506748 35.3664280979265, 136.746971018152 35.3664784544858, 136.747190326074 35.3665039181682, 136.747802147535 35.3665356384566, 136.747921867258 35.3667937784386, 136.748000121586 35.3669987513846, 136.748041996899 35.3671562100439, 136.748067359075 35.3672648814181, 136.748165106853 35.3681352401141)) ^^http://www.opengis.net/ont/geosparql#wktLiteral