Table: copasudamericana_match
Columns: team_1
points
team_2
1st_leg
2nd_leg

Question: What is the 2nd leg of goiás team 2?
SQL: SELECT "2nd_leg" FROM copasudamericana_match WHERE "team_2" = 'goiás'

Question: What is the 2nd leg of emelec team 2?
SQL: SELECT "2nd_leg" FROM copasudamericana_match WHERE "team_2" = 'emelec'

Question: What is the 2nd leg with ldu quito as team 1?
SQL: SELECT "2nd_leg" FROM copasudamericana_match WHERE "team_1" = 'ldu quito'