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 travelled to the hallway. Fact 2- Mary moved to the office. Fact 3- John went back to the kitchen. Fact 4- John went to the office. Fact 5- Mary went back to the kitchen. Fact 6- John journeyed to the hallway. Question: Where is Mary? Answer: kitchen
Example Output: Fact 5

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- Mary went back to the bedroom. Fact 2- Daniel travelled to the office. Question: Where is Mary? Answer: bedroom
Example Output:
Fact 1