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- John went back to the hallway. Fact 2- Sandra moved to the bedroom. Question: Where is Sandra? Answer: bedroom
Fact 2

Passage: Fact 1- Mary went to the hallway. Fact 2- Daniel went to the bathroom. Fact 3- Mary went to the bedroom. Fact 4- Mary went to the kitchen. Fact 5- Daniel moved to the garden. Fact 6- Daniel went to the office. Fact 7- John went to the kitchen. Fact 8- Sandra travelled to the garden. Question: Where is John? Answer: kitchen
Fact 7

Passage: Fact 1- Daniel journeyed to the hallway. Fact 2- Sandra travelled to the kitchen. Fact 3- John journeyed to the hallway. Fact 4- Sandra travelled to the office. Question: Where is Sandra? Answer: office

Fact 4