Task: Question Generation
Input (English): #1 return films 
#2 return oscars of #1 
#3 return #1 where  #2 is best picture 
#4 return #1 where  #2 is best director 
#5 return #1 where  #2 is best actor 
#6 return #1 in  both  #3 and #4 
#7 return #1 in  both  #6 and #5
Output (English): what films won oscars for best picture best director and best actor?