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 went to the garden. Fact 2- Daniel journeyed to the bathroom. Fact 3- John went to the office. Fact 4- Mary moved to the hallway. Question: Where is Daniel? Answer: bathroom

Ex Output:
Fact 2


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

Ex Output:
Fact 2


Ex Input:
Passage: Fact 1- Daniel moved to the garden. Fact 2- Mary went back to the bathroom. Fact 3- Daniel travelled to the kitchen. Fact 4- Sandra went to the kitchen. Question: Where is Sandra? Answer: kitchen

Ex Output:

Fact 4