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

Example Input: Passage: Fact 1- Sandra went back to the bathroom. Fact 2- Mary moved to the garden. Question: Where is Mary? Answer: garden
Example Output: Fact 2

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