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

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

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

Fact 6