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: He returned to St. Louis in 1837. That year, his half-brother Tom Tobin, then 14 years old, left with Charles and his colleague Ceran St. Vrain to return to Taos. Tom worked as a trapper and scout at Bent's Fort and in Taos. Along with _his_ brother, Tobin worked at Simeon Turley's store, mill, and distillery at Arroyo Hondo. <sep>, Pronoun: his

Tobin