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

Ex Output:
Fact 9


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

Ex Output:
Fact 8


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

Ex Output:

Fact 1