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.

Q: joe the plumber, nickname of "samuel joseph "joe" wurzelbacher", (born december 3, 1973 in toledo, ohio) is an american commentator, motivational speaker and political activist.

A: joe the plumber
****
Q: he wrote under the pen name d. h. lawrence.

A: d. h. lawrence
****
Q: bourbriac is a commune.

A:
bourbriac
****