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:
yu gamdong (, ?
answer:
yu gamdong


question:
arabesque is an artistic decoration.
answer:
arabesque


question:
the wii u is a video game console that was released by nintendo on november 18, 2012, and is the successor of the wii.
answer:

wii u