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

Ex Output:
Fact 4


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

Ex Output:
Fact 7


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

Ex Output:

Fact 6