メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.158664829606 34.9486188335428, 137.158490458433 34.948764465499, 137.157842146242 34.948289148784, 137.157763925676 34.9482318105693, 137.15855366761 34.9478875518454, 137.159213495128 34.9476823050318, 137.159652520595 34.9475133097587, 137.159810957394 34.9477058773566, 137.158664829606 34.9486188335428)) ^^http://www.opengis.net/ont/geosparql#wktLiteral