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: Lions live in social groups called prides., Fact2: Lions live in Africa., Question: where are there social groups called prides? (A) under the sea (B) outer space (C) complex (D) protected (E) arctic (F) fur seals (G) Summer (H) africa

Ex Output:
H


Ex Input:
Fact1: volcanic ash in the atmosphere decreases the temperature by blocking the sun, Fact2: Ash clouds are a particular problem for aircraft., Question: What are particular problems for aircraft in the atmosphere? (A) transportation (B) clog airways (C) extremely low humidity (D) volcanic clouds (E) feedback mechanisms (F) negative feedback (G) gas spreads in the air (H) very complex

Ex Output:
D


Ex Input:
Fact1: a airplane is used for moving people across bodies of water, Fact2: Oceans are large bodies of salt water which separates deposits of land., Question: Which of the following can be used to move people across salt water? (A) salt shaker (B) telekinesis (C) engines (D) bicycle (E) electricity (F) airplane (G) wind (H) animals

Ex Output:

F