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.

mrs. hugh hammersley is an oil painting by john singer sargent.
mrs. hugh hammersley

tatsuya shiji (志治 達雄, shiji tatsuya, born october 20, 1938) is a former japanese football player.
tatsuya shiji

herzele is a municipality in the belgian province of east flanders.

herzele