Definition: In this task, you will be presented with a text and a pronoun. You should write the name that the pronoun refers to. Position of the pronoun in the text is showed within two "_"s.
Input: Gilbert Cruz of Entertainment Weekly called the book ``half an account of Ken's life-halting obsession with reconstructing his mythical older brother and half the biography that David always expected as a soon-to-be-famous author.'' Matthew Sweet of The Independent wrote, ``Ken Dornstein's project- _his_ researches and the book that they have become--is both a loving tribute to the memory of his dead brother and an act of destruction and erasure... <sep>, Pronoun: his

Ken Dornstein