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 to the hallway. Fact 2- Daniel went to the bathroom. Fact 3- Mary went to the bedroom. Fact 4- Mary went to the kitchen. Question: Where is Mary? Answer: kitchen
[EX A]: Fact 4

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

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