Task: Question Generation
Input (English): #1 return people 
#2 return station 
#3 return #1 that wait outside of #2 
#4 return train 
#5 return #4 that is red 
#6 return #3 that wait to  board #5 
#7 return number of  #6 
#8 return if  #7 is at least two
Output (English): If people wait outside the station to board a red train.