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


[Q]: Passage: Fact 1- Daniel moved to the hallway. Fact 2- Daniel travelled to the office. Question: Where is Daniel? Answer: office
[A]: Fact 2


[Q]: Passage: Fact 1- Sandra journeyed to the bathroom. Fact 2- Daniel moved to the garden. Fact 3- John travelled to the garden. Fact 4- Daniel went to the office. Question: Where is John? Answer: garden
[A]:
Fact 3