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.

Example Input: Passage: Fact 1- Mary journeyed to the bedroom. Fact 2- Sandra moved to the kitchen. Fact 3- Mary journeyed to the garden. Fact 4- Sandra moved to the garden. Fact 5- John moved to the office. Fact 6- Sandra moved to the bedroom. Question: Where is John? Answer: office
Example Output: Fact 5

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

Example Input: Passage: Fact 1- Mary went back to the hallway. Fact 2- John went to the garden. Question: Where is Mary? Answer: hallway
Example Output:
Fact 1