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 hallway. Fact 2- Sandra journeyed to the garden. Fact 3- Sandra travelled to the bathroom. Fact 4- John travelled to the hallway. Fact 5- John travelled to the garden. Fact 6- Mary journeyed to the bedroom. Fact 7- Sandra journeyed to the office. Fact 8- Daniel journeyed to the hallway. Fact 9- Mary journeyed to the hallway. Fact 10- Mary moved to the bedroom. Question: Where is Mary? Answer: bedroom
Example Output: Fact 10

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

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