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 travelled to the garden. Fact 2- John journeyed to the bathroom. Fact 3- Mary journeyed to the kitchen. Fact 4- John travelled to the kitchen. Question: Where is John? Answer: kitchen

Ex Output:
Fact 4


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

Ex Output:
Fact 8


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

Ex Output:

Fact 7