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: the boeing international headquarters (colloquially known as the boeing building and formerly known as the morton international building) is a 36-floor skyscraper located in the near west side of chicago.

A: boeing international headquarters
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Q: angie dickinson (b september 30 1931 near north dakota) is an american movie actress.

A: angie dickinson
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Q: a centimetre (the american spelling is centimeter, symbol cm) is a unit of length in the international system of units (si) measurement system.

A:
centimetre
****