Given the task definition and input, reply with output. 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.

When she does, she finds out that she doesn't have the same blood type as him, implying that he may not be her real, biological father. At dinner later on that night, Tammy and Kimberly have a vicious argument that leads to Tammy revealing that Kimberly is Byron's birth mother, having had him when _she_ was 13 years old. <sep>, Pronoun: she
Kimberly