メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.273563881052 43.0649135581979, 141.273567687589 43.0650484111321, 141.273580277462 43.0652583807519, 141.273586588211 43.0663290556489, 141.273577066229 43.0663427594227, 141.273584014224 43.0667872278548, 141.273575206013 43.0672453477652, 141.273166744534 43.067059008262, 141.272804884857 43.0668799570519, 141.272565247557 43.0667603916816, 141.272319045482 43.0666375353025, 141.272096730764 43.0665266265789, 141.271960778034 43.0664500024227, 141.271594484802 43.0662606417503, 141.270979277982 43.0659445974144, 141.270951357487 43.0659329655076, 141.271567254001 43.0654217336979, 141.272077359679 43.0649998968041, 141.272184972651 43.064897994281, 141.272879890252 43.0643143563368, 141.272986811619 43.0642558401102, 141.273554079705 43.0642561071658, 141.273561750443 43.0643589940708, 141.273563881052 43.0649135581979)) ^^http://www.opengis.net/ont/geosparql#wktLiteral