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 journeyed to the kitchen. Fact 2- Daniel journeyed to the bedroom. Question: Where is Daniel? Answer: bedroom

Ex Output:
Fact 2


Ex Input:
Passage: Fact 1- Mary journeyed to the garden. Fact 2- Sandra went back to the office. Question: Where is Sandra? Answer: office

Ex Output:
Fact 2


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

Ex Output:

Fact 4