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 mysteries of alfred hedgehog is a tv show made in france and canada.
[A]: the mysteries of alfred hedgehog


[Q]: euclid's lemma, also called euclid's division lemma or euclid's first theorem, is an important lemma.
[A]: euclid's lemma


[Q]: drunk driving (drink driving in the uk and australia) is the act of driving a motor vehicle (car, truck, etc.) while under the effects of alcohol.
[A]:
drunk driving