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:
the canton of bellerive-sur-allier is an administrative division of the allier department in central france.
answer:
canton of bellerive-sur-allier


question:
carolee schneemann (october 12, 1939 – march 6, 2019) was an american visual experimental artist.
answer:
carolee schneemann


question:
contour lines or isolines are used when plotting a function.
answer:

contour line