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- Sandra moved to the bathroom. Fact 2- John journeyed to the office. Fact 3- Sandra went back to the hallway. Fact 4- John moved to the bedroom. Fact 5- Daniel moved to the garden. Fact 6- Daniel went back to the kitchen. Fact 7- Mary went back to the bedroom. Fact 8- John went back to the office. Question: Where is John? Answer: office

A: Fact 8
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Q: Passage: Fact 1- Daniel moved to the garden. Fact 2- Mary went back to the bathroom. Fact 3- Daniel travelled to the kitchen. Fact 4- Sandra went to the kitchen. Fact 5- Daniel journeyed to the garden. Fact 6- Mary journeyed to the kitchen. Fact 7- Mary moved to the hallway. Fact 8- John went back to the bedroom. Question: Where is Mary? Answer: hallway

A: Fact 7
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Q: Passage: Fact 1- Mary moved to the bedroom. Fact 2- Sandra moved to the garden. Question: Where is Sandra? Answer: garden

A:
Fact 2
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