table: [['date', 'race', 'race track', 'category', 'lap length'], ['july 21 , 1946', '1st grand prix des nations', 'circuit des nations', 'grand prix fia', 'km (mi) switzerland'], ['may 2 , 1948', '2nd grand prix de genève', 'circuit des nations', 'formula 2 fia , non - championship', 'km (mi)'], ['may 2 , 1948', '2nd grand prix des nations', 'circuit des nations', 'formula 1 fia , non - championship', 'km (mi)'], ['july 30 , 1950', '3rd grand prix de genève', 'circuit des nations', 'formula 2 fia , non - championship', 'km (mi)'], ['july 30 , 1950', '3rd grand prix des nations', 'circuit des nations', 'formula 1 fia , non - championship', 'km (mi)']]
ref: the 2nd Grand Prix De Nation was in the Category Formula 1 Fia , Non - Championship
template: the [ENT] was in the [ENT] [ENT]