The Cartesian Product of LEFTTAB and RIGHTTAB Continent Export Country Continent Export Country ------------------------------------------------------------ NA wheat Canada NA sugar USA NA wheat Canada EUR corn Spain NA wheat Canada EUR beets Belgium NA wheat Canada ASIA rice Vietnam EUR corn France NA sugar USA EUR corn France EUR corn Spain EUR corn France EUR beets Belgium EUR corn France ASIA rice Vietnam EUR rice Italy NA sugar USA EUR rice Italy EUR corn Spain EUR rice Italy EUR beets Belgium EUR rice Italy ASIA rice Vietnam AFR oil Egypt NA sugar USA AFR oil Egypt EUR corn Spain AFR oil Egypt EUR beets Belgium AFR oil Egypt ASIA rice Vietnam |