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 journeyed to the bathroom. Fact 2- Daniel went back to the kitchen. Fact 3- John journeyed to the office. Fact 4- Sandra travelled to the bedroom. Question: Where is Daniel? Answer: kitchen
Example Output: Fact 2

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. Question: Where is Mary? Answer: bedroom
Example Output: Fact 5

Example Input: Passage: Fact 1- John journeyed to the bedroom. Fact 2- Mary moved to the garden. Question: Where is John? Answer: bedroom
Example Output:
Fact 1