メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.080604482576 39.8054998480683, 140.081197498111 39.8069012123437, 140.079813846215 39.8068502830417, 140.076314372958 39.8067213316414, 140.07274916644 39.8065804119728, 140.072823498504 39.8051834124902, 140.074568767427 39.8052561842833, 140.078067393279 39.8053974617918, 140.080604482576 39.8054998480683)) ^^http://www.opengis.net/ont/geosparql#wktLiteral