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: heating salt water causes the water to evaporate while the salt remains, Fact2: Flash evaporators are used to make fresh water from salt water., Question: Doing what to salt water causes the water to become fresh water? (A) watershred (B) freezing (C) Regrows it (D) migrate (E) pouring (F) heating (G) cooling (H) erosion

Output: F


Input: Consider Input: Fact1: an incandescent light bulb converts electricity into light by sending electricity through a filament, Fact2: Electrical energy is also energy., Question: What part of a light bulb has energy run through it, converting energy into light? (A) adding heat (B) sun's heat (C) cotton (D) heat energy (E) glass (F) light (G) filaments (H) broken light bulbs

Output: G


Input: Consider Input: Fact1: a cactus stem is used for storing water, Fact2: Water consists of H2O, etc., Question: A cactus stem stores what? (A) RNA (B) h2o (C) rain (D) h1n1 (E) co2 (F) H20 (G) O2 (H) copper


Output: B