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.
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Question: Category: SPORTS BOOKS 
Clue: In 1998 the author of this controversial 1970 book was finally invited to play in a Yankees old-timers' game

Answer: \"ball four\"


Question: Category: LITERARY TERMS 
Clue: Jonathan Swift defined it as "A glass wherein beholders discover everybody's face but their own"

Answer: satire


Question: Category: 1970s HITS 
Clue: In 1970 2 performers reached the Top 20 with this hit whose 6-word title was inspired by Boys Town

Answer:
\"he ain\'t heavy, he\'s my brother\"