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.

Passage: Fact 1- Sandra moved to the bedroom. Fact 2- John travelled to the office. Fact 3- Daniel travelled to the hallway. Fact 4- Mary went to the hallway. Question: Where is Daniel? Answer: hallway
Fact 3

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

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

Fact 4