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 journeyed to the hallway. Fact 2- Sandra travelled to the kitchen. Question: Where is Sandra? Answer: kitchen
[A]: Fact 2


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


[Q]: Passage: Fact 1- John went back to the garden. Fact 2- Sandra went back to the bedroom. Fact 3- Sandra went to the bathroom. Fact 4- John went back to the kitchen. Fact 5- Mary went back to the hallway. Fact 6- Daniel travelled to the kitchen. Fact 7- Sandra went back to the bedroom. Fact 8- Sandra went to the office. Fact 9- Sandra went to the kitchen. Fact 10- Daniel travelled to the hallway. Question: Where is Sandra? Answer: kitchen
[A]:
Fact 9