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: the moirai(the fates) were the three goddesses of destiny in greek mythology.

SOLUTION: moirai

PROBLEM: valbirse is a new municipality of the administrative district of jura bernois in the canton of berne in switzerland.

SOLUTION: valbirse

PROBLEM: aspirin (acetylsalicylic acid) is a drug.

SOLUTION:
aspirin