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.

anton rubinstein (born vikhvatinets 28 november 1829; died petershof 20 november 1894) was a russian pianist and composer.
anton rubinstein

hop and go is a 1943 looney tunes short movie directed by u.s. corporal norman mccabe and released to movie theaters by rko radio pictures.
hop and go

the main street is insadong-gil, which is connected to many alleys that lead deeper into the district.

insadong