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

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

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