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 to the bedroom. Fact 2- Mary went to the kitchen. Question: Where is Mary? Answer: kitchen

Ex Output:
Fact 2


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

Ex Output:
Fact 8


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

Ex Output:

Fact 7