# Example sets
set_a = {1, 2, 3, 4, 5}
set_b = {4, 5, 6, 7, 8}

# Union: Combine the elements of both sets (no duplicates)
union_set = set_a.union(set_b)
print("Union of A and B:", union_set)
# Expected Output: Union of A and B: {1, 2, 3, 4, 5, 6, 7, 8}

# Intersection: Find elements present in both sets
intersection_set = set_a.intersection(set_b)
print("Intersection of A and B:", intersection_set)
# Expected Output: Intersection of A and B: {4, 5}

# Difference: Find elements in set A that are not in set B
difference_set = set_a.difference(set_b)
print("Difference of A and B (elements in A but not in B):", difference_set)
# Expected Output: Difference of A and B (elements in A but not in B): {1, 2, 3}

# Subset: Check if set A is a subset of set B
is_subset = set_a.issubset(set_b)
print("Is A a subset of B?", is_subset)
# Expected Output: Is A a subset of B? False

# Additional example for subset
set_c = {1, 2, 3}
is_subset_c_in_a = set_c.issubset(set_a)
print("Is C a subset of A?", is_subset_c_in_a)
# Expected Output: Is C a subset of A? True