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

[EX Q]: Passage: Fact 1- Sandra went back to the bedroom. Fact 2- Mary went back to the hallway. Fact 3- Mary moved to the bathroom. Fact 4- Mary went to the hallway. Question: Where is Mary? Answer: hallway
[EX A]: Fact 4

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