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

Ex Output:
Fact 8


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

Ex Output:
Fact 6


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

Ex Output:

Fact 5