TASK DEFINITION: Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.
PROBLEM: l'elisir d'amore is an italian comic opera in two acts.

SOLUTION: l'elisir d'amore

PROBLEM: terry and june is a british sitcom that was shown on bbc one from 1979 until 1987.

SOLUTION: terry and june

PROBLEM: naglfari is in the norse mythology the first husband of nótt and a father of auðr.

SOLUTION:
naglfari