メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.167746436179 35.1041809958467, 137.167720471654 35.1045981319396, 137.167705300064 35.1051049896563, 137.166446201364 35.1049965663533, 137.166005105814 35.1049585438897, 137.165389286641 35.1048916471759, 137.165414011183 35.1045585989443, 137.165488396531 35.1039470831497, 137.165549146396 35.1036086817995, 137.166581000972 35.1037190262718, 137.1668140879 35.1037415582894, 137.167760148083 35.1038316811835, 137.167746436179 35.1041809958467)) ^^http://www.opengis.net/ont/geosparql#wktLiteral