TASK DEFINITION: Given a question and its paraphrases, answer the question. The answer should exactly answer all the questions given without any ambiguity. Don't give partial answers.
PROBLEM: Questions: ['when did the first spaceship from earth land on mars?']

SOLUTION: 1976-07-20

PROBLEM: Questions: ['when did kristen stewart and robert pattinson start dating?']

SOLUTION: 2008

PROBLEM: Questions: ['what year was it when someone walked on the moon?']

SOLUTION:
1969