Table: football_match_12
Columns: date
location
head_coach
opponent
result

Question: Who was the head coach when the opponent was Arsenal?
SQL: SELECT "head_coach" FROM football_match_12 WHERE "opponent" = 'arsenal'

Question: Who was the opponent when the head coach was B. Sathianathan?
SQL: SELECT "opponent" FROM football_match_12 WHERE "head_coach" = 'b. sathianathan'

Question: When was the opponent Arsenal?
SQL: SELECT "date" FROM football_match_12 WHERE "opponent" = 'arsenal'

Question: What was the result when the opponent was Arsenal?
SQL: SELECT "result" FROM football_match_12 WHERE "opponent" = 'arsenal'