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 back to the office. Fact 2- Mary went back to the hallway. Fact 3- Sandra journeyed to the bathroom. Fact 4- Sandra travelled to the hallway. Fact 5- Mary went back to the office. Fact 6- Daniel went to the bathroom. Fact 7- Mary moved to the bathroom. Fact 8- John went to the bedroom. Fact 9- Daniel went back to the bedroom. Fact 10- Sandra travelled to the office. Question: Where is Mary? Answer: bathroom
[A]: Fact 7


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


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