Table: draft_picks_1973_3
Columns: pick
player
position
nationality
nhl_team
college_junior_club_team

Question: How many nationalities does Tom Colley have?
SQL: SELECT COUNT("nationality") FROM draft_picks_1973_3 WHERE "player" = 'Tom Colley'

Question: What's the NHL team that drafted the player from Sudbury Wolves (OHA)?
SQL: SELECT "nhl_team" FROM draft_picks_1973_3 WHERE "college_junior_club_team" = 'Sudbury Wolves (OHA)'

Question: What's the number of positions of the player playing in Minnesota North Stars?
SQL: SELECT COUNT("position") FROM draft_picks_1973_3 WHERE "nhl_team" = 'Minnesota North Stars'

Question: What's the smallest pick number of a player playing in Minnesota North Stars?
SQL: SELECT MIN("pick") FROM draft_picks_1973_3 WHERE "nhl_team" = 'Minnesota North Stars'

Question: What's the nationality of the player coming from Edmonton Oil Kings (WCHL)?
SQL: SELECT "nationality" FROM draft_picks_1973_3 WHERE "college_junior_club_team" = 'Edmonton Oil Kings (WCHL)'

Question: What's Steve Langdon's naitionality?
SQL: SELECT "nationality" FROM draft_picks_1973_3 WHERE "player" = 'Steve Langdon'