Table: african_cup_1981
Columns: team_1
agg
team_2
1st_leg
2nd_leg

Question: Who is team 1 when 2nd leg score is 1-3 and Asec Mimosas is Team 2?
SQL: SELECT "team_1" FROM african_cup_1981 WHERE "2nd_leg" = '1-3' AND "team_2" = 'asec mimosas'

Question: What is the 1st leg score when 2nd leg score is 3-3?
SQL: SELECT "1st_leg" FROM african_cup_1981 WHERE "2nd_leg" = '3-3'

Question: What is the 1st leg score when US Mbila Nzambi is team 1?
SQL: SELECT "1st_leg" FROM african_cup_1981 WHERE "team_1" = 'us mbila nzambi'