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. Fact 5- Sandra went to the kitchen. Fact 6- Mary travelled to the kitchen. Fact 7- Daniel journeyed to the kitchen. Fact 8- Sandra went to the garden. Question: Where is Sandra? Answer: garden
Example Output: Fact 8

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

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