メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.055207061568 34.8616404326932, 137.0548118289 34.8618291712017, 137.053895174534 34.8605775179186, 137.053962048801 34.8605194767712, 137.054069821452 34.8604273154492, 137.054274829492 34.8602719996416, 137.05447274734 34.8606642563544, 137.054596360646 34.860587181042, 137.054890650553 34.8609952305644, 137.054863399492 34.8610072492946, 137.05493013126 34.8611009096071, 137.054642990503 34.8612326979157, 137.054893945562 34.8612825806514, 137.054884868438 34.8613524370789, 137.055161226254 34.8614076956127, 137.055117635803 34.8615285811804, 137.055207061568 34.8616404326932)) ^^http://www.opengis.net/ont/geosparql#wktLiteral