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- John went to the bedroom. Fact 2- John went back to the office. Question: Where is John? Answer: office
Example Output: Fact 2

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

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