Given the task definition and input, reply with output. 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.

Passage: John went to the bathroom. John went back to the hallway. Sandra went back to the kitchen. Daniel went back to the office. Daniel went back to the bathroom. Daniel moved to the bedroom. Mary went to the office. Sandra travelled to the office. Question: Where is Sandra?

office