instruction:
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.
question:
tatsuya kamohara (born 8 july 1983) is a japanese football player.
answer:
tatsuya kamohara


question:
dariusz michalczewski (may 5, 1968) better known as tiger is a polish boxer.
answer:
dariusz michalczewski


question:
embraer erj family is a series of of twin-engine regional jets produced by embraer.
answer:

embraer erj family