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 travelled to the bedroom. Fact 2- Mary went to the hallway. Fact 3- Sandra went to the office. Fact 4- Sandra journeyed to the kitchen. Question: Where is Mary? Answer: hallway

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

A: Fact 4
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Q: Passage: Fact 1- Mary moved to the garden. Fact 2- John went to the bedroom. Fact 3- Daniel journeyed to the kitchen. Fact 4- Sandra went to the bathroom. Fact 5- Daniel journeyed to the bathroom. Fact 6- Daniel moved to the garden. Fact 7- Daniel went to the kitchen. Fact 8- Mary journeyed to the bathroom. Fact 9- Sandra travelled to the garden. Fact 10- Sandra went to the hallway. Question: Where is Mary? Answer: bathroom

A:
Fact 8
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