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 _. There are several possible answers, you'll need to choose the proper one. Carefully read the given text, pay special attention to the marked number, think about what (unwritten) information the marked number holds inside, choose the most adequate word(s) from the optional answers. If none of them seems right to you, there's also an option for other. If your answer is "REFERENCE", also write the reference entity, otherwise write the implicit option name. Options to choose from are:
REFERENCE: Some object which is being mentioned in the text before or after the target number. The reference answer has a higher priority than any other. If both Reference and another answer are possible, prioritize the Reference.
YEAR: Describing a calendric year
AGE: Describing someone's age
CURRENCY: Reference to some monetary value e.g dollar, euro etc.
PEOPLE: Describing a single/plural persons
TIME: Describing a time of the day. Usually you can add the word o'clock after those numbers.
OTHER: Some other option, which isn't listed here.
Input: Derek Morgan:  We believe that the unsub that we 're looking for is a woman who 's trying to get pregnant . She 's experiencing what we call black widow maternal desire . She has a desperate need for a child , which most likely stems from the recent loss of _ one _ .
Alex Blake: That child may have died or been taken away in a custody situation .
Dr. Spencer Reid: She 's drugging her male victims in order to keep them under her control for forty - eight hours , and we believe she 's using them as breeding partners to help replace the child that she lost .
David Rossi: Her victims are surrogates for a male figure in her life . One she may have already killed . He could be a boyfriend or husband who most likely fathered the child she lost .
Aaron Hotchner: And the signs of torture indicate that she may blame the child 's father for this loss and is exacting her revenge on these victims .
Alex Blake: After they 're dead , she dismembers them for easier disposal .
Derek Morgan: The strength required to do this , and transport body parts , it 's likely that she 's working with a submissive partner she dominates with her agenda .
David Rossi: Based on the sophistication and patience required for these crimes , we believe this unsub is probably in her thirties and no older than her early forties , if pregnancy is her goal .
Jennifer 'JJ' Jareau: And she works at night , luring victims from parties or bars . She may even have an illness , or feign one to gain their sympathy .
Aaron Hotchner: Chad Dumont 's been missing for almost thirty hours , and if the unsub keeps to her schedule , he may still be alive . But time is of the essence .
Dr. Spencer Reid: Even though the first two victims are dead , we can certainly step up our game so we can give the victims ' families some answers
Aaron Hotchner: Thank you .

REFERENCE child