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- John moved to the bedroom. Fact 2- Mary moved to the hallway. Fact 3- Sandra moved to the bedroom. Fact 4- Sandra travelled to the kitchen. Question: Where is Sandra? Answer: kitchen
[A]: Fact 4


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


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