In this task, you will be given a passage consisting of set of facts. The task is to create a question of form 'Where is <person_name>?' that is answerable from exactly one of the given facts. Avoid creating questions that are unanswerable from all of the facts.
One example: Passage: Mary moved to the bathroom. John went to the hallway.
Solution is here: Where is Mary?
Explanation: 'Mary moved to the bathroom.' is a supporting fact from which we can create a question 'Where is Mary?'

Now, solve this: Passage: Mary went back to the bedroom. Mary travelled to the garden. John journeyed to the kitchen. Sandra went back to the office.
Solution:
Where is Mary?