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- Sandra journeyed to the garden. Fact 2- Sandra journeyed to the kitchen. Question: Where is Sandra? Answer: kitchen
Example Output: Fact 2

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

Example Input: Passage: Fact 1- John moved to the hallway. Fact 2- Mary moved to the garden. Fact 3- Daniel travelled to the garden. Fact 4- Mary went to the bathroom. Fact 5- Mary went back to the bedroom. Fact 6- John went to the kitchen. Fact 7- Sandra went back to the hallway. Fact 8- John went to the bathroom. Fact 9- Mary went back to the office. Fact 10- John travelled to the bedroom. Question: Where is Sandra? Answer: hallway
Example Output:
Fact 7