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]: lactarius torminosus, commonly known as the woolly milkcap or the bearded milkcap, is a mushroom in the genus "lactarius".
[EX A]: lactarius torminosus

[EX Q]: the corruption perceptions index is an index that shows how corrupt certain countries are.
[EX A]: corruption perceptions index

[EX Q]: enac alumni (also referred to as ingenac) is an alumni association based in toulouse, midi-pyrénées.
[EX A]:
enac alumni