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.

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

Ex Output:
Fact 7


Ex Input:
Passage: Fact 1- Mary moved to the hallway. Fact 2- Mary travelled to the kitchen. Question: Where is Mary? Answer: kitchen

Ex Output:
Fact 2


Ex Input:
Passage: Fact 1- Mary travelled to the kitchen. Fact 2- Mary moved to the hallway. Fact 3- John went to the office. Fact 4- John went back to the garden. Fact 5- John moved to the hallway. Fact 6- Sandra travelled to the hallway. Question: Where is John? Answer: hallway

Ex Output:

Fact 5