Task: Question Generation
Input (English): #1 return service types 
#2 return products of #1 
#3 return #1 where #2 is photo 
#4 return #1 where #2 is film 
#5 return #1 in  both #3 and  #4 
#6 return description of #5
Output (English): What is the description of the service type which offers both the photo product and the film product?