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.

[EX Q]: the canton of bellerive-sur-allier is an administrative division of the allier department in central france.
[EX A]: canton of bellerive-sur-allier

[EX Q]: escape velocity is the initial speed that something would need to completely escape the gravity of a large body, like a star or a planet (such as the earth), by mere inertia.
[EX A]: escape velocity

[EX Q]: sony pictures animation is an american computer-animated movie production company.
[EX A]:
sony pictures animation