メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.171471786209 34.0068237944659, 131.171127409778 34.00701104011, 131.170838613347 34.0071680257402, 131.170316487514 34.0074613134831, 131.169952167783 34.0069727836528, 131.169705774275 34.0066632678931, 131.170435684781 34.0063060213134, 131.170491993874 34.0062785848031, 131.17134838109 34.0058667135869, 131.171421206791 34.0061636926169, 131.171471786209 34.0068237944659)) ^^http://www.opengis.net/ont/geosparql#wktLiteral