question: What are the first names, office locations, and departments of all instructors, and also what are the descriptions of the courses they teach?
#1 return instructors 
#2 return first names of  #1 
#3 return offices of  #1 
#4 return locations of  #3 
#5 return departments of  #1 
#6 return courses of  #1 
#7 return descriptions of  #6 
#8 return #2 ,  #4 ,   #5 , #7