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.

he wrote under the pen name d. h. lawrence.
d. h. lawrence

the wisconsin river is a river in the united states.
wisconsin river

brian doyle-murray (born brian murray; october 31, 1945) is an american comedian, screenwriter, actor and voice actor.

brian doyle-murray