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- Daniel travelled to the hallway. Fact 2- John journeyed to the hallway. Fact 3- John journeyed to the office. Fact 4- Daniel went to the kitchen. Question: Where is John? Answer: office
[A]: Fact 3


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


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