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.
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Question: the viol (rhymes with "mile") is a string instrument that is played with a bow.

Answer: viol


Question: "god defend new zealand" is one of the national anthems of new zealand.

Answer: god defend new zealand


Question: ahmad akmad usman y batabol (1974 – 3 may 2015), better known as abdul basit usman, was a filipino islamist and fugitive.

Answer:
abdul basit usman