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: Plants that shed their leaves seasonally each year are called deciduous plants., Fact2: Vines are perennial, deciduous climbing plants., Question: What sheds their leaves seasonally each year? (A) camels (B) oak (C) Spruce (D) fens (E) Trees (F) burrs (G) apples (H) vines

Ex Output:
H


Ex Input:
Fact1: a greenhouse is used to protect plants from the cold, Fact2: Plants are very easily raised from seed, sown in a cold greenhouse from February to April., Question: What does a greenhouse protect plants from to help them grow easily? (A) death (B) hotness (C) Winter (D) fronts (E) heat (F) drought (G) rain (H) chill

Ex Output:
H


Ex Input:
Fact1: burning wood is used to produce heat, Fact2: Heat is added and the temperature of the water increases., Question: What is used to increase temperature? (A) activation energy (B) ice (C) electricity (D) snow (E) glaciers (F) burning wood (G) Electrical energy (H) Fuel cells

Ex Output:

F