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]: ricardo de la espriella toral (born september 5, 1934) is a panamanian politician.
[A]: ricardo de la espriella


[Q]: a releaser is a stimulus from one animal to another, which causes a particular response.
[A]: releaser


[Q]: the italy national under-21 football team is the national under-21 football team of italy.
[A]:
italy national under-21 football team


