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. Question: Where is Daniel? Answer: bathroom
Fact 7

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

Passage: Fact 1- Daniel went to the bedroom. Fact 2- John went back to the kitchen. Fact 3- John moved to the bedroom. Fact 4- Mary travelled to the office. Fact 5- Sandra went to the office. Fact 6- Sandra went back to the hallway. Fact 7- John went back to the kitchen. Fact 8- Mary went back to the garden. Fact 9- Mary journeyed to the bathroom. Fact 10- Daniel travelled to the hallway. Question: Where is Mary? Answer: bathroom

Fact 9