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]: kurt julius isselbacher (september 12, 1925 – july 18, 2019) was a german-born american physician and gastroenterologist.
[A]: kurt julius isselbacher


[Q]: accountancy or accounting is the job of sharing financial information about a business to managers and shareholders (people who have invested in the business).
[A]: accountancy


[Q]: masayuki ochiai (born 11 july 1981) is a japanese football player.
[A]:
masayuki ochiai