question: Show the studios that have produced films with director "Nicholas Meyer" and "Walter Hill".
#1 return studios 
#2 return films of  #1 
#3 return directors of  #2 
#4 return #1 where #3 is  Nicholas Meyer 
#5 return #1 where #3 is  Walter Hill 
#6 return #1 of  both #4 and  #5