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 went to the bedroom. Fact 2- Daniel went to the bedroom. Fact 3- John travelled to the office. Fact 4- John went back to the bedroom. Question: Where is John? Answer: bedroom

Ex Output:
Fact 4


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

Ex Output:
Fact 9


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

Ex Output:

Fact 2