List the names of the first andthe second teams that played a match with the point of the winning margin lower than the 30% of the average winning margin of the matches held in 2011.
name of the team refers to Team_Name; in 2011 refers to Match_Date LIKE '2011%'; the point of winning margin lower than 30% of the average winning margin refers to Win_Margin < multiply(avg(Win_Margin), 0.3) where Match_Date LIKE '2011%'
SELECT DISTINCT CASE WHEN T1.Win_Margin < ( SELECT AVG(Win_Margin) * 0.3 FROM Match WHERE Match_Date LIKE '2011%' ) THEN T2.Team_Name END, CASE WHEN T1.Win_Margin < ( SELECT AVG(Win_Margin) * 0.3 FROM Match WHERE Match_Date LIKE '2011%' ) THEN T3.Team_Name END FROM Match AS T1 INNER JOIN Team AS T2 ON T2.Team_Id = T1.Team_1 INNER JOIN Team AS T3 ON T3.Team_Id = T1.Team_2 WHERE T1.Match_Date LIKE '2011%'