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").

Ex Input:
Fact1: gravity causes objects that have mass to be pulled down on a planet, Fact2: Rocks have mass., Question: What does gravity cause to be pulled down on a planet? (A) matter (B) heat (C) earth (D) solutes (E) oceans (F) Rocks (G) people (H) Lift

Ex Output:
F


Ex Input:
Fact1: Rivers are usually larger than streams., Fact2: Watersheds are creeks, streams and rivers., Question: What is a river also? (A) storing water (B) loose soil (C) dangerous (D) fertile (E) more abundant (F) watershred (G) body water (H) kinetic

Ex Output:
F


Ex Input:
Fact1: zinc has a positive impact on the healing of wounds, Fact2: An incised wound is a clean cut., Question: What kind of impact does zinc have on healing cuts? (A) heat energy (B) lowered energy cost (C) no impact (D) major threat to health (E) it causes infection (F) a positive impact (G) circulatory systems (H) a negative impact

Ex Output:

F