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.

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

A: Fact 9
****
Q: Passage: Fact 1- Daniel travelled to the hallway. Fact 2- John journeyed to the hallway. Fact 3- John journeyed to the office. Fact 4- Daniel went to the kitchen. Question: Where is John? Answer: office

A: Fact 3
****
Q: Passage: Fact 1- Mary went back to the office. Fact 2- John went back to the bathroom. Fact 3- John went to the hallway. Fact 4- Mary journeyed to the hallway. Fact 5- Sandra travelled to the hallway. Fact 6- Mary travelled to the office. Question: Where is John? Answer: hallway

A:
Fact 3
****