メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.213530865401 34.8261465966618, 137.213735802332 34.8261127061398, 137.213817940431 34.8264169285524, 137.214077573493 34.8264618962261, 137.214091301374 34.8265858468382, 137.214009423993 34.8267887183022, 137.213749760874 34.8266874066477, 137.213462822726 34.82668752438, 137.213175844727 34.8266087602596, 137.213080022773 34.8262594682453, 137.213530865401 34.8261465966618)) ^^http://www.opengis.net/ont/geosparql#wktLiteral