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.

[EX Q]: Passage: Fact 1- John went back to the garden. Fact 2- John travelled to the hallway. Question: Where is John? Answer: hallway
[EX A]: Fact 2

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

[EX Q]: Passage: Fact 1- Sandra journeyed to the garden. Fact 2- Sandra journeyed to the kitchen. Question: Where is Sandra? Answer: kitchen
[EX A]:
Fact 2