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

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

Passage: Fact 1- Daniel went to the hallway. Fact 2- Daniel moved to the bedroom. Question: Where is Daniel? Answer: bedroom

Fact 2