Instructions: In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
Input: Fact1: fog is formed by water vapor condensing in the air, Fact2: An example of water vapor is steam., Question: What is an analogue to fog? (A) rainy (B) Pacific (C) thunder (D) Halloween (E) steam (F) rain (G) glass (H) mystery
Output:
E