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.

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

one of the books that cornelia meigs wrote won the newbery medal in 1934.
cornelia meigs

panoplosaurus was an armored tank-like dinosaur from the upper cretaceous, living about 76–73 million years ago.

panoplosaurus

