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

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

Passage: Fact 1- Sandra went to the garden. Fact 2- Mary journeyed to the office. Question: Where is Sandra? Answer: garden

Fact 1