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