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- John went to the bedroom. Fact 2- Daniel journeyed to the bedroom. Fact 3- Daniel journeyed to the kitchen. Fact 4- Sandra went back to the bedroom. Question: Where is John? Answer: bedroom

Output: Fact 1


Input: Consider Input: Passage: Fact 1- Daniel went back to the bathroom. Fact 2- John moved to the bathroom. Question: Where is John? Answer: bathroom

Output: Fact 2


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


Output: Fact 8