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.

maicon douglas sisenando (born 26 july 1981) is a brazilian football player.
maicon douglas sisenando

songkran is a festival held every year in thailand on april 13.
songkran

rosenheim is a city in upper bavaria, germany.

rosenheim