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

Ex Output:
Fact 3


Ex Input:
Passage: Fact 1- John went to the bedroom. Fact 2- John went back to the office. Question: Where is John? Answer: office

Ex Output:
Fact 2


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

Ex Output:

Fact 10