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 moirai(the fates) were the three goddesses of destiny in greek mythology.
[EX A]: moirai

[EX Q]: ernest gary gygax (july 27, 1938 – march 4, 2008) (ipa: ˈgaj.gæks) was an american writer and game designer.
[EX A]: gary gygax

[EX Q]: sigtuna municipality is a municipality in stockholm county in central sweden.
[EX A]:
sigtuna municipality