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

Example Input: Passage: Fact 1- John went to the bathroom. Fact 2- John moved to the office. Fact 3- John went to the hallway. Fact 4- Sandra journeyed to the hallway. Fact 5- John journeyed to the bathroom. Fact 6- Daniel went to the bathroom. Question: Where is John? Answer: bathroom
Example Output: Fact 5

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. Question: Where is Mary? Answer: garden
Example Output:
Fact 6