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


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


[Q]: Passage: Fact 1- Sandra travelled to the bathroom. Fact 2- Mary travelled to the office. Fact 3- Sandra travelled to the hallway. Fact 4- Mary moved to the bathroom. Question: Where is Sandra? Answer: hallway
[A]:
Fact 3