メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.329283826924 43.0614015345105, 141.329130546177 43.0620040760669, 141.329105987124 43.0621068401836, 141.329041530471 43.062375822411, 141.329018400467 43.0624728303371, 141.328980952845 43.0626291523037, 141.328966285959 43.0626990815521, 141.328499490772 43.0626391270628, 141.3285134902 43.0625626515608, 141.32741764618 43.06242138471, 141.327419894811 43.0624122602945, 141.327595855136 43.0617313475023, 141.327399610466 43.0617057806906, 141.327453906964 43.0614687174449, 141.327653553226 43.0614976162637, 141.327734586678 43.0611980344695, 141.328103492155 43.0612491051103, 141.328459063522 43.061298328801, 141.328584954036 43.0613142517921, 141.329283826924 43.0614015345105)) ^^http://www.opengis.net/ont/geosparql#wktLiteral