Task: Question Generation
Input (English): #1 return Houston 
#2 return people in   2016 of #1 
#3 return #2 that commuted to work by driving alone 
#4 return #2 that commuted to work using public transit 
#5 return #2 that commuted to work using a bicycle 
#6 return percentage of #3 
#7 return percentage of #4 
#8 return percentage of #5 
#9 return sum of #6 ,    #7 ,  #8
Output (English): How many people in Houston, in terms of percentage, commuted to work by driving alone, using public transit, or using a bicycle combined in 2016?