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

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. Fact 9- Mary went back to the office. Fact 10- John went back to the office. Question: Where is Sandra? Answer: office
Example Output: Fact 7

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