Definition: In this task, you will use your knowledge about language (and common sense) to determine what element the marked number refers to. The numbers are marked with two underlines around them, like: _ number _. Your answer should be chosen from the given text, and should not contain other words.
Input: Alan Shore:  What 's your specialty ?
Dr. Allen Konigsberg: Couples ' counseling . I first saw the client and his wife together . Since the divorce I 've been working with him alone .
Alan Shore: So they came to you to improve their relationship , and now _ one _ wants to kill the other . Not your best work , was it , doctor ?

client