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

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

Example Input: Passage: Fact 1- Mary moved to the bathroom. Fact 2- Sandra went to the hallway. Fact 3- Mary went back to the kitchen. Fact 4- Daniel went back to the kitchen. Question: Where is Daniel? Answer: kitchen
Example Output:
Fact 4