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: John Jackson (1801-1848) was an English engraver. Jackson was born at Ovingham, Northumberland in 1801, and was apprenticed to the wood engraver Thomas Bewick. After a quarrel with _his_ master, Jackson went to London and worked for the wood engraver William Harvey. <sep>, Pronoun: his

Jackson