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: ROCK AROUND AMERICA 
Clue: The house where this Janis Joplin band was formed once stood at 1090 Page Street in San Francisco

SOLUTION: big brother and the holding company

PROBLEM: Category: "GRAND" PRIX 
Clue: This 3-word nickname for the Republicans dates from the 1870s

SOLUTION: grand old party

PROBLEM: Category: ANCIENT HISTORY 
Clue: From 500 to 300 B.C. these Roman common citizens won political rights from the Patricians

SOLUTION:
plebeians