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- Mary travelled to the hallway. Fact 2- Mary moved to the garden. Question: Where is Mary? Answer: garden

Output: Fact 2


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

Output: Fact 6


Input: Consider Input: Passage: Fact 1- Mary went back to the office. Fact 2- John went back to the bathroom. Fact 3- John went to the hallway. Fact 4- Mary journeyed to the hallway. Question: Where is Mary? Answer: hallway


Output: Fact 4