Task: Question Decomposition
Input (English): question: What are the first names and office locations for all professors sorted alphabetically by first name?
Output (English): #1 return professors 
#2 return first  names of  #1 
#3 return offices of  #2 
#4 return location of  #3 
#5 return #2 ,  #4 
#6 return #5 sorted by #2 alphabetically