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]: rupert thorne is a fictional batman character, who is the crime boss of batman.
[A]: rupert thorne


[Q]: tatsuya shiji (志治 達雄, shiji tatsuya, born october 20, 1938) is a former japanese football player.
[A]: tatsuya shiji


[Q]: anacle michael ghounam kiessou, better known by his stage name michael kiessou is a cameroonian singer-songwriter and entertainer.
[A]:
michael kiessou