メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.244000956584 36.7030411128912, 137.244162255117 36.7034545761928, 137.242963798806 36.7039298104514, 137.242349375343 36.7041734526765, 137.242595824052 36.7045789771279, 137.241833803973 36.7048146838955, 137.241344494409 36.70435418099, 137.24115450282 36.7041893363227, 137.240654904015 36.7037559431123, 137.240930730107 36.7036377716823, 137.241383636695 36.7034592228045, 137.241710539589 36.7033232064985, 137.242252846077 36.703109604888, 137.242753410702 36.7029104632678, 137.243518756703 36.7026075113872, 137.243789469218 36.7024989835332, 137.244000956584 36.7030411128912)) ^^http://www.opengis.net/ont/geosparql#wktLiteral