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 went back to the office. Fact 2- John went back to the bathroom. Question: Where is Mary? Answer: office

Output: Fact 1


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

Output: Fact 4


Input: Consider Input: Passage: Fact 1- Mary went back to the hallway. Fact 2- Sandra journeyed to the bedroom. Fact 3- Sandra travelled to the kitchen. Fact 4- John went back to the hallway. Fact 5- Daniel went back to the office. Fact 6- Mary moved to the kitchen. Fact 7- Daniel went back to the bathroom. Fact 8- Daniel travelled to the office. Question: Where is Daniel? Answer: office


Output: Fact 8