Consider the following relations R and S: R a 172 b 4 6 8 12 10 S C b a 1 4 2 2 8 6 1 3 7 1 For each of the following questions, use the Insert Table menu option to insert an appropriately sized table for the answer, and then fill in the table with the correct values. 1. What is the Cartesian product of R and S? 2. What is the natural join of R and S? 3. What is the left outer join of R and S? 4. What is the right outer join of R and S? 5. What is the full outer join of R and S?