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


[Q]: Passage: Fact 1- Daniel went back to the bedroom. Fact 2- Sandra travelled to the bedroom. Fact 3- Sandra went to the office. Fact 4- Mary went to the office. Question: Where is Mary? Answer: office
[A]: Fact 4


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