Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.

Input: Consider Input: The Greek island of Lemnos lies in which sea?

Output: aegean sea


Input: Consider Input: Three of the Galilean moons of Jupiter are Io, Europa and Callisto. Which is the fourth?

Output: ganymede


Input: Consider Input: In 1915, which Balkan nation joined W.W.I., on the side of the Central Powers (i.e. Germany), by declaring war on Serbia?


Output: bulgaria