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

Example Input: Passage: Fact 1- Mary moved to the kitchen. Fact 2- Sandra moved to the kitchen. Fact 3- Mary went to the garden. Fact 4- John moved to the bedroom. Question: Where is Sandra? Answer: kitchen
Example Output: Fact 2

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