Task: Question Generation
Input (English): #1 return employees 
#2 return departments of #1 
#3 return #1 where #2 is  70 
#4 return #1 where #2 is  90 
#5 return #3 ,  #4 
#6 return first names of #5 
#7 return last names of #5 
#8 return #6 ,  #7
Output (English): What are the first and last name for those employees who works either in department 70 or 90?