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 went back to the office. Fact 2- John went back to the bathroom. Question: Where is Mary? Answer: office
Example Output: Fact 1

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

Example Input: Passage: Fact 1- Daniel went to the office. Fact 2- John journeyed to the garden. Fact 3- John travelled to the bathroom. Fact 4- Daniel moved to the bedroom. Question: Where is John? Answer: bathroom
Example Output:
Fact 3