TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
PROBLEM: Category: LITTLE LEAGUE 
Clue: Begun in 2001, an orientation program for these people tells them not to freak out over coaches' or umpires' decisions

SOLUTION: parents

PROBLEM: Category: HOLIDAYS 
Clue: "(Hi, I'm Chuck Woolery)  You can send a card to your sweetheart or anyone in your 4th grade class on this February holiday"

SOLUTION: valentine\'s day

PROBLEM: Category: ORGANIZED LABOR 
Clue: Sometimes battling Boeing, the IAMAW is the International Association of these & Aerospace Workers

SOLUTION:
machinists