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: Mutualism is a symbiotic relationship in which both species benefit., Fact2: Dogs and humans are symbiotic species., Question: what exists between dogs and humans? (A) mutualism (B) gravity (C) communication (D) antigens (E) several genes (F) space between (G) electrons (H) german shepherd

Output: A


Input: Consider Input: Fact1: if a plant requires less water then that plant will survive in a drought, Fact2: Plants are heat and drought tolerant., Question: Plants that are heat tolerant and require less water are able what?  (A) uproot its soil (B) produce flowers (C) migrate (D) growth (E) survive (F) rest (G) spread its seeds (H) reproduce


Output: E