TASK DEFINITION: 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.
PROBLEM: Passage: Fact 1- Mary went back to the hallway. Fact 2- Daniel went back to the bedroom. Question: Where is Mary? Answer: hallway

SOLUTION: Fact 1

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

SOLUTION: Fact 4

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

SOLUTION:
Fact 9