Given the task definition, example input & output, solve the new input case.
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.
Example: He grew up in Evanston, Illinois the second oldest of five children including his brothers, Fred and Gordon and sisters, Marge (Peppy) and Marilyn. His high school days were spent at New Trier High School in Winnetka, Illinois. MacKenzie studied with Bernard Leach from 1949 to 1952. _His_ simple, wheel-thrown functional pottery is heavily influenced by the oriental aesthetic of Shoji Hamada and Kanjiro Kawai. <sep>, Pronoun: His
Output: MacKenzie
Based on the text, his refers to MacKenzie.

New input case for you: Marx did not study directly with Hegel, but after Hegel died Marx studied under one of Hegel's pupils, Bruno Bauer, a leader of the circle of Young Hegelians to whom Marx attached himself. However, Marx and Engels came to disagree with Bruno Bauer and the rest of the Young Hegelians about socialism and also about the usage of Hegel's dialectic. Having achieved _his_ thesis on the Difference of natural philosophy between Democritus and Epicurus in 1841, the young Marx progressively broke away with the Prussian university and its teachings impregnated by German Idealism (Kant, Fichte, Schelling and Hegel). <sep>, Pronoun: his
Output:
Marx