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: OPERAS BASED ON PLAYS 
Clue: "The Queen of Cornwall", from a play by this author, premiered "Far from the Madding Crowd", in Glastonbury
answer:
thomas hardy


question:
Category: COUNTRY CLUBS 
Clue: The 8-member club formed by this treaty shutskied its doors in 1991
answer:
the warsaw pact


question:
Category: BRAND NAMES 
Clue: Randy Jones' BBQ at San Diego's Qualcomm Stadium sells a half-pound hot dog named for this baseball equipment brand
answer:

louisville slugger