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: BUSINESS & INDUSTRY 
Clue: In 1926 the Peet Bros. merged their soap company with this one, which then merged with Colgate

SOLUTION: palmolive

PROBLEM: Category: EPITAPHS 
Clue: "Subject of the decision of the Supreme Court of the United States in 1857 which denied citizenship to the Negro"

SOLUTION: dred scott

PROBLEM: Category: SCI-FI/FANTASY HEROINES 
Clue: Either of the 2 similar-sounding roles portrayed by Liv Tyler & Miranda Otto in the "Lord of the Rings" series

SOLUTION:
arwen