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