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: Derek Morgan:  Where are we ?
David Rossi: Honestly ? Nowhere . We just watched our two most viable suspects walk out the door .
Emily Prentiss: If Adam is n't our unsub , he has all the makings to become _ one _ someday .
Aaron 'Hotch' Hotchner: Reid ?
Dr. Spencer Reid: Tell me the question that he spiked under in the polygraph .
Derek Morgan: It was a control question to set the baseline .
Dr. Spencer Reid: It was a geometric equation ?
Derek Morgan: Reid , I really think he was just intimidated . He tried , he got it wrong , but he was n't supposed to know the answer anyway .
Dr. Spencer Reid: What if he lied ? What if ... what if he knew the answer to the question but intentionally got it wrong ?
Jennifer 'JJ' Jareau: Why would he do that ?
Dr. Spencer Reid: Because he realized that he would n't know that answer .
Derek Morgan: You 're losing me , kid .
Dr. Spencer Reid: Adam said he was n't getting any rest . He takes midday naps because he 's always exhausted . He has a history of blackouts , reclusive behavior , prolonged repeated abuse suffered at the hands of a dominant male who transferred abuse from his female spouse to his prepubescent child .
Aaron 'Hotch' Hotchner: Where are you going with this ?
Dr. Spencer Reid: What if our ubsub couple is n't a couple at all ?
Aaron 'Hotch' Hotchner: Dissociative identity disorder .
David Rossi: You think Adam 's a multiple personality ?
Emily Prentiss: Well , it fits . Recurrent physical abuse , knowledge he should n't have . We 've seen this before .
Dr. Spencer Reid: Look at this . All right ? The - the first intervention is timid . It 's apprehensive , right ? But then he gets knocked down ... there 's a moment of calm , and then his entire body language changes . I saw this exact same transformation when Adam left the station , only it was n't rage , it was , uh ... arrogance . Like ... like the alter ego wanted me to know .
Aaron 'Hotch' Hotchner: Why ?
Dr. Spencer Reid: I do n't know . Power , control . All I know is the person that stared me down over there was not Adam . He 's not assertive like that . He does n't make eye contact .
Jennifer 'JJ' Jareau: So you think the stress of the interrogation blurred the line between Adam and his alter personality ?
Dr. Spencer Reid: I think the unsub surfaced for just a moment . It - it - it knew the answer to the question , realized Adam would n't , and lied .

unsub