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.

[Q]: Megan Hunt:  Cause of death is still drug overdose
Curtis Brumfield: Actually , I just got the tox screen results . No drug were detected in Rebecca 's system
Tommy Sullivan: So , what killed her now , Dr. Hunt ?
Megan Hunt: There 's still a scientific explanation
Ethan Gross: Yeah , I really , really want there to be _ one _ !
[A]: explanation


[Q]: Esfandiar Mashaei:  We have 2 or 3 centrifuges , they say should n't have these _ three _ , but another day we have 2300 and they say it 's enough , no problem . what 's happened ? Their nature changed ? No , they 're submitted .
[A]: centrifuges


[Q]: Batman:  The nuke , where 'd you get it ?
The Joker: Why , you want _ one _ ? Copy bat .
Superman: Get away from him !
Batman: I 'm handling this .
Superman: You drugged me ! Made me ... Lois ... my son .
The Joker: First Krypton , now Metropolis . People you love tend to blow up , do n't they ?
Batman: Superman , do n't !
The Joker: That 's why I like you , Superman . You are more gullible than ... You think you can have a family . That locking me up would * magically * reform me , and they 'll be safe . So big . So dumb . Now run along so I can break out of here . I got lots of planning to do to top this .
Batman: That 's enough !
The Joker: I know it 's soon , but ... think you 'll ever love again ? Maybe you wo n't kill your next family
[A]:
nuke