instruction:
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.
question:
Category: AMERICAN POETRY 
Clue: Walt Whitman called this "the beautiful uncut hair of graves"
answer:
grass


question:
Category: THE LAW 
Clue: Asked in 1966 to write a concise statement for arresting officers to recite, California D.A. Harold Berliner started with these 7 words
answer:
you have the right to remain silent


question:
Category: HOLIDAYS 
Clue: The Society for Human Resource Management says, of the 10 federal holidays, it's the least observed by the private sector
answer:

columbus day