メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.334615236593 36.7634128787228, 137.334568101214 36.7634295218768, 137.334467002865 36.7632944822047, 137.334456883888 36.7632809782344, 137.33444228405 36.7632620588613, 137.334415334986 36.7632269638447, 137.334341192068 36.7631306796683, 137.334231138595 36.7629956522269, 137.334127837255 36.7628813160558, 137.334380080136 36.7627276158747, 137.334636419596 36.7626379078005, 137.33493916931 36.7627576672079, 137.334707786698 36.7628827549576, 137.334830615268 36.7630243120417, 137.334723561503 36.7630890958301, 137.334900104644 36.763286057652, 137.334808342143 36.763344695333, 137.334615236593 36.7634128787228)) ^^http://www.opengis.net/ont/geosparql#wktLiteral