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- Daniel went to the kitchen. Fact 2- Daniel went back to the garden. Question: Where is Daniel? Answer: garden
Example Output: Fact 2

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