Here is this:

The granddaughter of the writer, Valentina Katayev, told how her girlfriend at school was asked to write a piece about what Katayev invested in the image of Vany from the novel "Son of the Regiment". A friend came to Katayev in visit and asked about this the writer himself, taking his words as the basis of his work. As a result, for the composition, she received a three with a minus with a comment that Katayev thought about something completely different.

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This story is told by Darya Donzova about herself. And the daughter of Valentina Katayev, who really knew her well as a child, says that Grunja (the real name of Dontsova) has always been a townhouse to lie :)))