You will be given a passage consisting of set of facts and a question as input. The task is to answer a question of form 'Where is <person_name>?' using one of the given facts to determine the latest location of the person. Answer should be a word/phrase describing the location from the supporting fact. Avoid answers that are incomplete or incorrect.
Q: Passage: Daniel went to the bedroom. John went back to the kitchen. John moved to the bedroom. Mary travelled to the office. Sandra went to the office. Sandra went back to the hallway. Question: Where is Mary?
A: 
office