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


[Q]: Passage: Fact 1- Mary travelled to the kitchen. Fact 2- Mary moved to the hallway. Fact 3- John went to the office. Fact 4- John went back to the garden. Question: Where is John? Answer: garden
[A]: Fact 4


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