Table: concachampions
Columns: team_1
agg
team_2
1st_leg
2nd_leg

Question: Which Team 2 had a Team 1 of montreal impact?
SQL: SELECT "team_2" FROM concachampions WHERE "team_1" = 'montreal impact'

Question: Which Team 2 had a Team 1of joe public?
SQL: SELECT "team_2" FROM concachampions WHERE "team_1" = 'joe public'

Question: Which team 1 had a Team 2 of hankook verdes?
SQL: SELECT "team_1" FROM concachampions WHERE "team_2" = 'hankook verdes'