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 travelled to the garden. Fact 3- Sandra journeyed to the kitchen. Fact 4- Sandra moved to the garden. Question: Where is Sandra? Answer: garden
Fact 4

Passage: Fact 1- John journeyed to the garden. Fact 2- John travelled to the office. Fact 3- Mary travelled to the hallway. Fact 4- John journeyed to the bedroom. Question: Where is John? Answer: bedroom
Fact 4

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

Fact 10