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 travelled to the bathroom. Fact 2- Daniel went to the hallway. Fact 3- John moved to the kitchen. Fact 4- Mary journeyed to the kitchen. Question: Where is John? Answer: kitchen
Example Output: Fact 3

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

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