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.

in 1920 the name was changed from fv to sv werder bremen.
werder bremen

rita gam (april 2, 1927march 22, 2016) was an american and television actress and documentary filmmaker.
rita gam

yun seon-do (korean:윤선도, june 22 1587 - june 11 1671) was a korean politician, philosopher, and poet during the joseon dynasty.

yun seon-do