メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.817496551547 35.2948470828526, 136.817822370426 35.2958052147675, 136.817878028981 35.2959755879432, 136.818081806189 35.2965820966218, 136.81746015101 35.296613752049, 136.817440112284 35.2966147505877, 136.816811972828 35.2966709619565, 136.816185508997 35.2967020335614, 136.816165323356 35.2963739443385, 136.816142831168 35.2957492257321, 136.816133410092 35.2951510952889, 136.816119781464 35.2942636558636, 136.816750015847 35.2941271722123, 136.817226244241 35.2940348183313, 136.817496551547 35.2948470828526)) ^^http://www.opengis.net/ont/geosparql#wktLiteral