The table R(X,Y) currently has the following tuples (note there are duplicates). The relation S(A,B,C) has the following tuples: R(X,Y): | X | Y | |---|---| | 1 | 2 | | 1 | 2 | | 2 | 3 | | 3 | 4 | | 3 | 4 | | 4 | 1 | | 4 | 1 | | 4 | 1 | | 4 | 2 | S(A,B,C): | A | B | C | |---|---|---| | 1 | 1 | 3 | | 1 | 2 | 3 | | 2 | 1 | 4 | | 2 | 3 | 5 | | 2 | 4 | 1 | | 3 | 2 | 4 | | 3 | 3 | 6 | Which is the result when we execute the following query: ```sql SELECT * FROM R UNION SELECT * FROM S ```