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 went back to the bedroom. Fact 2- Mary went back to the hallway. Fact 3- Mary moved to the bathroom. Fact 4- Mary went to the hallway. Question: Where is Mary? Answer: hallway

Output: Fact 4


Input: Consider Input: Passage: Fact 1- John went to the kitchen. Fact 2- John went to the hallway. Fact 3- John travelled to the bathroom. Fact 4- Sandra travelled to the kitchen. Fact 5- John journeyed to the garden. Fact 6- Sandra went back to the bedroom. Fact 7- Mary moved to the hallway. Fact 8- Mary went to the bedroom. Fact 9- Mary went back to the garden. Fact 10- Sandra travelled to the hallway. Question: Where is Mary? Answer: garden

Output: Fact 9


Input: Consider Input: Passage: Fact 1- John journeyed to the bedroom. Fact 2- Mary went to the office. Question: Where is Mary? Answer: office


Output: Fact 2