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 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. Fact 5- Daniel travelled to the bathroom. Fact 6- John travelled to the bathroom. Question: Where is John? Answer: bathroom
[EX A]: Fact 6

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

[EX Q]: Passage: Fact 1- Sandra moved to the hallway. Fact 2- John went back to the hallway. Question: Where is Sandra? Answer: hallway
[EX A]:
Fact 1