SELECT Fname FROM Student WHERE Major  =  600
What are the first names for all students who are from the major numbered 600?
[Schema (values) (types)]: | game_1 |  Student : stuid (text) , lname (number) , fname (text) , age (text) , sex (number) , major (text) , advisor (number) , city_code (number) | Video_Games : gameid (text) , gname (number) , gtype (text) | Plays_Games : stuid (text) , gameid (number) , hours_played (text) | SportsInfo : stuid (text) , sportname (number) , hoursperweek (text) , gamesplayed (text) , onscholarship (number);