Q: 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.
Passage: Fact 1- Daniel went to the bathroom. Fact 2- Sandra went to the hallway. Fact 3- John went to the office. Fact 4- Sandra journeyed to the garden. Question: Where is John? Answer: office
A:
Fact 3