メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.99339830328 34.9130684943674, 136.993084633489 34.9140821427954, 136.992794686911 34.9152202678918, 136.992624242239 34.9159077549615, 136.991756953722 34.9157236881187, 136.990465555666 34.9154826616945, 136.990742333494 34.9136612278361, 136.990829680911 34.9129604534981, 136.990999689854 34.9129310094653, 136.991549695156 34.9128357503819, 136.991935232798 34.9127689750339, 136.992370451887 34.9126935934954, 136.992669568821 34.9126417842869, 136.993012863155 34.9128401972897, 136.993278924915 34.9129993476712, 136.99339830328 34.9130684943674)) ^^http://www.opengis.net/ont/geosparql#wktLiteral