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

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

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