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


[Q]: Passage: Fact 1- Mary journeyed to the bathroom. Fact 2- Mary moved to the hallway. Question: Where is Mary? Answer: hallway
[A]: Fact 2


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