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- John went to the kitchen. Fact 2- John went to the hallway. Fact 3- John travelled to the bathroom. Fact 4- Sandra travelled to the kitchen. Question: Where is John? Answer: bathroom

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

A: Fact 2
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Q: Passage: Fact 1- Mary went to the office. Fact 2- Sandra travelled to the bathroom. Fact 3- Sandra went to the hallway. Fact 4- Daniel journeyed to the kitchen. Fact 5- Sandra travelled to the office. Fact 6- John journeyed to the bedroom. Question: Where is Sandra? Answer: office

A:
Fact 5
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