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

Passage: Fact 1- John went to the office. Fact 2- Daniel journeyed to the kitchen. Fact 3- John travelled to the bedroom. Fact 4- John moved to the garden. Question: Where is Daniel? Answer: kitchen
Fact 2

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

Fact 8