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: Derek saved her life, but was and still is angry with her. Amelia ended up sleeping with Derek's best friend Mark Sloan, following in the footsteps of her sister Nancy and her ex sister-in-law Addison Montgomery after making peace with Derek following _his_ own shooting. <sep>, Pronoun: his

Derek