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- Sandra went to the garden. Fact 2- John journeyed to the kitchen. Fact 3- John went back to the office. Fact 4- Daniel moved to the garden. Fact 5- Mary went back to the hallway. Fact 6- Sandra moved to the bedroom. Question: Where is John? Answer: office
Fact 3

Passage: Fact 1- Sandra journeyed to the kitchen. Fact 2- Sandra journeyed to the garden. Question: Where is Sandra? Answer: garden
Fact 2

Passage: Fact 1- Sandra journeyed to the bathroom. Fact 2- Mary travelled to the hallway. Question: Where is Mary? Answer: hallway

Fact 2