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


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


[Q]: Passage: Fact 1- John journeyed to the garden. Fact 2- John travelled to the office. Question: Where is John? Answer: office
[A]:
Fact 2