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 journeyed to the kitchen. Fact 2- Daniel went back to the bedroom. Fact 3- Sandra travelled to the bathroom. Fact 4- Sandra moved to the kitchen. Fact 5- Sandra journeyed to the bedroom. Fact 6- Mary went to the kitchen. Fact 7- Daniel moved to the bathroom. Fact 8- Sandra moved to the office. Fact 9- Sandra travelled to the hallway. Fact 10- John went to the kitchen. Question: Where is Mary? Answer: kitchen
Fact 6

Passage: Fact 1- Mary went back to the office. Fact 2- John went back to the bathroom. Question: Where is Mary? Answer: office
Fact 1

Passage: Fact 1- Mary went to the bathroom. Fact 2- John went to the kitchen. Question: Where is John? Answer: kitchen

Fact 2