text: # Sets do not have order and cannot have duplicates
  # They are used for quick comparisons
  
  art_friends = {'Alice', 'Bob'}
  science_friends = {'Charlie', 'Darlene'}
  
  art_friends.add('Charlie')
  art_friends.remove('Bob')
  # print(art_friends)
  
  set1 = {'Alice', 'Bob', 'Charlie'}
  set2 = {'Anne', 'Charlie'}
  
  exclusive_in_set1 = set1.difference(set2)
  # print(exclusive_in_set1)
  
  exclusive_in_set2 = set2.difference(set1)
  # print(exclusive_in_set2)
  
  not_in_both = set1.symmetric_difference(set2)
  # print(not_in_both)
  
  intersection = set1.intersection(set2)
  # print(intersection)
  
  everyone = set1.union(set2)
  # print(everyone)
  