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: patau syndrome affects about one in 25,000 live births.

Answer: patau syndrome


Question: pennywise is an american melodic hardcore band.

Answer: pennywise


Question: grass jelly, or leaf jelly, is a jelly-like dessert eaten in mainland china, hong kong, macau, southeast asia and taiwan.

Answer:
grass jelly