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

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

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