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: PREPOSITIONAL PHRASES
Clue: This Bob Seger song gained commercial popularity in Chevy truck ads

SOLUTION: "like a rock"

PROBLEM: Category: PART: CHARLES
Clue: In the '80s, he played Charles Ryder, a central character in TV's "Brideshead Revisited"

SOLUTION: jeremy irons

PROBLEM: Category: THE 17th CENTURY
Clue: A royal observatory was founded in this London borough in 1675

SOLUTION:
greenwich