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

[EX Q]: Passage: Fact 1- John went back to the bathroom. Fact 2- Mary travelled to the bathroom. Fact 3- Mary went to the garden. Fact 4- Sandra moved to the garden. Question: Where is John? Answer: bathroom
[EX A]: Fact 1

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