メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.881073034175 35.150553414105, 136.881002262214 35.1505990717152, 136.88178398427 35.1515284683613, 136.881317043332 35.1517951237496, 136.880814593751 35.1520820473929, 136.880484100208 35.1522668361118, 136.879558879009 35.1511623444139, 136.880389626831 35.1506974648523, 136.880701665251 35.1505228448267, 136.880860808403 35.1504308936514, 136.880878170804 35.1504515363344, 136.880948421698 35.1504079869488, 136.881073034175 35.150553414105)) ^^http://www.opengis.net/ont/geosparql#wktLiteral