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 to the bathroom. Fact 2- John moved to the office. Question: Where is John? Answer: office
[EX A]: Fact 2

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

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