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.

[Q]: Category: "E" GADS! 
Clue: In 1986 they became the first siblings inducted into the Rock & Roll Hall of Fame
[A]: the everly brothers


[Q]: Category: JOHN 
Clue: First Watergate judge
[A]: john sirica


[Q]: Category: AFRO-DITTY 
Clue: Crosby, Stills & Nash were "Traveling the train through clear Moroccan skies" on this title locomotive
[A]:
the marrakesh express