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 travelled to the bedroom. Fact 2- Daniel moved to the hallway. Question: Where is Mary? Answer: bedroom
[EX A]: Fact 1

[EX Q]: Passage: Fact 1- John went to the bedroom. Fact 2- Daniel journeyed to the bedroom. Fact 3- Daniel journeyed to the kitchen. Fact 4- Sandra went back to the bedroom. Question: Where is John? Answer: bedroom
[EX A]: Fact 1

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