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.

Q: nadia sharmeen (bengali: নাদিয়া শারমীন) is a crime reporter from bangladesh, who writes news stories about crime.

A: nadia sharmeen
****
Q: in organic chemistry, an epoxide is a molecule that has a ring with at least three atoms in total, two carbon atoms and one oxygen atom.

A: epoxide
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Q: marco streller (born 18 june 1981) is a swiss football player.

A:
marco streller
****