Task: Question Generation
Input (English): #1 return staffs 
#2 return jobs assigned to  #1 
#3 return #1 where at least one #2 is  Sales Person 
#4 return #1 where at least one #2 is  Clerical Staff 
#5 return #1 in both #3 and #4 
#6 return #3 besides #5 
#7 return the   names of #6 
#8 return the   genders of #6 
#9 return #7 ,  #8
Output (English): Find the name and gender of the staff who has been assigned the job of Sales Person but never Clerical Staff.