instruction:
In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.
question:
When did the drummer of def leppard lose his arm?
answer:
31 December 1984


question:
Who sings the original i can't help falling in love with you?
answer:
Elvis Presley


question:
What is the meaning of primus inter pares?
answer:

honorary title for someone who is formally equal to other members of their group but is accorded unofficial respect