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

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

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