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

Question: For team Atlético Nacional, what were the points?
SQL: SELECT "points" FROM copa_libertadores_knockout WHERE "team_2" = 'Atlético Nacional'

Question: If team two is San Lorenzo, how many were on team one?
SQL: SELECT COUNT("team_1") FROM copa_libertadores_knockout WHERE "team_2" = 'San Lorenzo'

Question: If team two is Lanús, what was the total number of points?
SQL: SELECT COUNT("points") FROM copa_libertadores_knockout WHERE "team_2" = 'Lanús'