Table: t_1903_michigan_football_players
Columns: player
touchdowns
extra_points
field_goals
points

Question: How many touchdowns were made where field goals were less than 0?
SQL: SELECT SUM("touchdowns") FROM t_1903_michigan_football_players WHERE "field_goals" < 0

Question: While Duncan Thompson played, how many points did he have where there were 0 field goals, 0 extra points, and more than 9 touchdowns?
SQL: SELECT AVG("points") FROM t_1903_michigan_football_players WHERE "field_goals" = 0 AND "touchdowns" > 9 AND "extra_points" = 0 AND "player" = 'duncan thompson'

Question: When Herb Graver played, how many field goals were made when there were more than 50 points, less than 15 touchdowns, and more than 0 extra points?
SQL: SELECT AVG("field_goals") FROM t_1903_michigan_football_players WHERE "points" > 50 AND "extra_points" > 0 AND "player" = 'herb graver' AND "touchdowns" < 15

Question: How many field goals were there, where the points where less than 45 and there were less than 15 touchdowns?
SQL: SELECT AVG("field_goals") FROM t_1903_michigan_football_players WHERE "touchdowns" < 15 AND "points" < 45