Task: Question Decomposition
Input (English): question: display those employees who contain a letter z to their first name and also display their last name, city.
Output (English): #1 return employees 
#2 return first name  of  #1 
#3 return #1 where #2 contain a letter z 
#4 return last name  of  #3 
#5 return city of  #3 
#6 return #4 ,  #5