You will be given a definition of a task first, then some input of the task.
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.

Irina: You should know something Sydney . I never wanted to have a child . The KGB demanded it . They knew it would ensure allegiance to me . You were simply a means to an end . And then when the doctor put you in my arms and I looked at you , so fragile , all I could think was , how could I have made such a terrible mistake . And at that moment I was sure of one thing . I could n't be an agent and a mother . I 'd either fail at _ one _ or both . And I chose to fail at being a mother .
Output:
agent