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: mechanical weathering is when rocks are broken down by mechanical means, Fact2: Water is a mechanical weathering force., Question: What  weathers rocks? (A) soil (B) streams (C) a delta (D) calcite (E) erosion (F) water (G) grass (H) the sun

Output: F


Input: Consider Input: Fact1: a ship is used for moving people across bodies of water, Fact2: An ocean is a large body of water., Question: What is used to move people across an ocean? (A) A wagon (B) A wave (C) energy (D) wind (E) oil (F) dolphins (G) A ship (H) A catapult

Output: G


Input: Consider Input: Fact1: high mountains with well-rounded peaks can be formed by collision of crustal plates, Fact2: When plates collide, the earthquake is the result from the collision., Question: What can result in the formation of high mountains with well-rounded peaks? (A) air pollution (B) heating (C) hurricanes (D) changes in size (E) permeable walls (F) tsunamis (G) earthquakes (H) thunder


Output: G