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


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


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