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 hallway. Fact 2- Mary moved to the garden. Fact 3- Sandra went to the kitchen. Fact 4- Sandra moved to the bathroom. Question: Where is Sandra? Answer: bathroom

Ex Output:
Fact 4


Ex Input:
Passage: Fact 1- John journeyed to the kitchen. Fact 2- John journeyed to the garden. Question: Where is John? Answer: garden

Ex Output:
Fact 2


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

Ex Output:

Fact 6