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: Consider Input: Fact1: satellites are used to take images from space, Fact2: Images of Earth taken from space., Question: Images of Earth are taken by (A) satellites (B) light (C) Communication (D) millions (E) radar (F) Plate tectonics (G) moving plates (H) lamphreys

Output: A


Input: Consider Input: Fact1: ultraviolet light causes sunburn, Fact2: Furthermore, sunburn can cause premature aging and skin cancers., Question: What can ultraviolet light cause? (A) chemical changes (B) Cold skin (C) killing insects (D) Healthy skin (E) disease (F) Skin cancer (G) symptoms (H) Low temperatures

Output: F


Input: Consider Input: Fact1: Playing is one way mammals and other animals learn how to behave., Fact2: Dogs learn many social rules through play., Question: How are dogs trained on how to behave? (A) Summer (B) during the day (C) By getting older (D) Movement (E) exercise (F) By sleeping (G) Through walks (H) Through play


Output: H