Suppose that a user wishes to request information on four of six given terms t, 12, 13, 14, 15, and to. How many quadruples of term does this involve? In other words, determine (a) the length of the fully explicit query and (b) show this query: (t1 AND t2 AND 13 AND 14) OR (1 AND 13 AND ts AND to) OR... Tip: if a user wishes to request information on two of three given[terms t, t2, and 13, the answer will be a) 3; b) (t AND t) OR (t2 AND 13) OR (t AND t3).