メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.929662159622 35.4788501273404, 136.928878878263 35.4788605953507, 136.928099212709 35.4788859945231, 136.926955434503 35.4788942221851, 136.926930587903 35.4778271647958, 136.927038151329 35.4778292803027, 136.928091361761 35.4778171398722, 136.928860895674 35.4778089398399, 136.929534345134 35.4778042429277, 136.929656946787 35.477807512398, 136.929656655094 35.4779077939292, 136.929662159622 35.4788501273404)) ^^http://www.opengis.net/ont/geosparql#wktLiteral