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- Mary moved to the bedroom. Fact 2- Sandra moved to the garden. Fact 3- John travelled to the office. Fact 4- Sandra journeyed to the office. Question: Where is John? Answer: office
Fact 3

Passage: Fact 1- Mary moved to the bedroom. Fact 2- Sandra travelled to the garden. Fact 3- Sandra journeyed to the kitchen. Fact 4- Sandra moved to the garden. Question: Where is Sandra? Answer: garden
Fact 4

Passage: Fact 1- Sandra went to the bathroom. Fact 2- Daniel went to the bedroom. Fact 3- Mary went to the garden. Fact 4- Sandra moved to the hallway. Fact 5- Daniel journeyed to the bathroom. Fact 6- Mary journeyed to the kitchen. Question: Where is Sandra? Answer: hallway

Fact 4