Show the distinct leader names of colleges associated with members from country "Canada".
SELECT DISTINCT T1.Leader_Name FROM college AS T1 JOIN member AS T2 ON T1.College_ID  =  T2.College_ID WHERE T2.Country  =  "Canada"
SELECT DISTINCT T1.Leader_Name FROM college AS T1 JOIN member AS T2 ON T1.College_ID  =  T2.College_ID WHERE T2.Country  =  "Canada"
[{'Leader_Name': 'Samir Chahine'}, {'Leader_Name': 'Roger Dunbrack'}]