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.

Input: Consider Input: Passage: Fact 1- Sandra journeyed to the garden. Fact 2- Mary travelled to the hallway. Question: Where is Mary? Answer: hallway

Output: Fact 2


Input: Consider Input: Passage: Fact 1- John went to the kitchen. Fact 2- John moved to the garden. Fact 3- Daniel went back to the bedroom. Fact 4- Sandra moved to the office. Question: Where is Sandra? Answer: office

Output: Fact 4


Input: Consider Input: Passage: Fact 1- Sandra moved to the office. Fact 2- John went back to the garden. Fact 3- Daniel travelled to the office. Fact 4- Sandra journeyed to the bathroom. Fact 5- John moved to the kitchen. Fact 6- John moved to the bathroom. Question: Where is Sandra? Answer: bathroom


Output: Fact 4