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 moved to the bedroom. Fact 2- Sandra moved to the garden. Fact 3- John travelled to the office. Fact 4- Sandra journeyed to the office. Question: Where is John? Answer: office
Example Output: Fact 3

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

Example Input: Passage: Fact 1- Daniel journeyed to the garden. Fact 2- John moved to the garden. Question: Where is Daniel? Answer: garden
Example Output:
Fact 1