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.

[EX Q]: Questions: ['what date did lucille ball and desi arnaz meet?']
[EX A]: 1940

[EX Q]: Questions: ['when was joe biden elected for being a senator of deleware?']
[EX A]: 1972

[EX Q]: Questions: ['when did hitler invade holland?', 'on what date did hitler attack holland?', "when did the the hitler's army invade holland?"]
[EX A]:
1940-05-10