メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.557295704377 33.2091023414095, 130.556463741632 33.2091039942065, 130.556446444018 33.2089942996946, 130.556441664748 33.2088534953464, 130.556407702122 33.2085835455212, 130.556643535764 33.2085726377172, 130.556926403734 33.2085574946134, 130.557074694076 33.2085487758702, 130.557275169234 33.2085448737102, 130.557295704377 33.2091023414095)) ^^http://www.opengis.net/ont/geosparql#wktLiteral