beer (beername, brewer, type) customer (ID, cname, dob) likes (ID, beername) prefers (ID, type) purchase (ID, beername, bar, date) serves (bar, beername) 1. (RA , TRC, and DRC) Find all the bars that serve a beer brewed by Defeat Brewing Company. 2. (RA using outer join, RA without using outer join, TRC, and DRC) Find each beer that is served at a bar that has never sold that beer to anyone. 3. (RA, TRC, and DRC) Find each customer who has purchased every beer that she or he likes