instruction:
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.
question:
ash ketchum (satoshi in japanese) is a character from the "pokémon" anime.
answer:
ash ketchum


question:
pennywise is an american melodic hardcore band.
answer:
pennywise


question:
premature birth is when a baby is born before the normal end of pregnancy.
answer:

premature birth