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]: douglas lawrence "doug" osowski (born january 1, 1969) mostly known as mr. lawrence or doug lawrence is an american voice, actor, comedian, writer, storyboard artist, animator, and director.
[A]: mr. lawrence


[Q]: the boeing monomail was a monoplane instead of a biplane.
[A]: boeing monomail


[Q]: i.o.u. means "i owe you" or "i owe unto".
[A]:
i.o.u.