казакова

In a sentence

• Казакова прочитала интересную книгу.

  Kazakova read an interesting book.

  Here, 'Казакова' is used as a last name, likely indicating the subject is female, who performed the action in the sentence.

• Казакова улица - одна из самых красивых в городе.

  Kazakova Street is one of the most beautiful in the city.

  In this usage, 'Казакова' appears as part of a proper noun, naming a street.

• Мы обсудили работу Казакова.

  We discussed Kazakov's work.

  Here, 'Казакова' is a possessive form referring to someone's work, using a last name to indicate ownership.