You will be given a passage with an enumerated set of facts, a question of form 'Where is <person_name>?', and its answer. The task is to identify a supporting fact that is necessary to answer the question. The output would be the corresponding fact number.

Q: Passage: Fact 1- Mary moved to the hallway. Fact 2- Mary travelled to the kitchen. Fact 3- John went to the kitchen. Fact 4- Sandra moved to the bedroom. Question: Where is John? Answer: kitchen

A: Fact 3
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Q: Passage: Fact 1- Mary went back to the bedroom. Fact 2- Daniel travelled to the office. Fact 3- Daniel went back to the garden. Fact 4- John journeyed to the office. Question: Where is John? Answer: office

A: Fact 4
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Q: Passage: Fact 1- John travelled to the bathroom. Fact 2- Sandra moved to the hallway. Question: Where is Sandra? Answer: hallway

A:
Fact 2
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