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]: anton buttigieg, kuom ( ]; 19 february 1912 – 5 may 1983) was a maltese politician.
[EX A]: anton buttigieg

[EX Q]: querfurt a town in saalekreis district (kreis) in the south of saxony-anhalt, germany, in a fertile country on the querne, 29 km west from merseburg, on a branch line from oberroblingen.
[EX A]: querfurt

[EX Q]: arboriculture is both a practical skill and a science.
[EX A]:
arboriculture