Table: fa_cup_matches_6
Columns: tie_no
home_team
score
away_team
attendance

Question: What is the home team that played Derby County as the away team?
SQL: SELECT "home_team" FROM fa_cup_matches_6 WHERE "away_team" = 'derby county'

Question: Which home team is ranked no. 7 by tie no.?
SQL: SELECT "home_team" FROM fa_cup_matches_6 WHERE "tie_no" = '7'

Question: What is the score for the game in which Manchester United was the home team?
SQL: SELECT "score" FROM fa_cup_matches_6 WHERE "home_team" = 'manchester united'