Table: lincoln_city_f_c
Columns: name
position
club_career
league_apps
league_goals
total_apps
total_goals

Question: What was the club career for players in positions of DF, fewer than 18 total goals, fewer than 129 league appearances, and more than 7 league goals?
SQL: SELECT "club_career" FROM lincoln_city_f_c WHERE "position" = 'df' AND "total_goals" < 18 AND "league_apps" < 129 AND "league_goals" > 7

Question: What is the fewest total goals scored for players with under 171 league appearances, 151 total appearances, and the DF position?
SQL: SELECT MIN("total_goals") FROM lincoln_city_f_c WHERE "league_apps" < 171 AND "total_apps" = 151 AND "position" = 'df'