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: Brad Parker:  The first time I heard about Dreamworld was in ' _ 3 _ . I was serving with the 173rd in Kandahar at the time . The story stuck with me , so about a year ago I started poking around . Found out it was a forward operating base in northern Afghanistan ; launching pad for covert special ops in the region .
Kate Beckett: Did Bronson work at that base ?
Brad Parker: Yeah . Yeah , I 'd heard his name a couple of times , so I approached him .
Special Agent Rachel McCord: And what 'd he tell you ?
Brad Parker: Nothing at all . In fact , he seemed pretty freaked out that I knew he was stationed there . Asked me how much I knew about him , Dreamworld , about what he 'd done .
Kate Beckett: Wait , wait , wait . What did he mean by that ?
Brad Parker: Never told me . Whatever it was , he sure as hell did n't want it getting out . Next thing I know , my editor 's killing the story at the personal request of Defense Secretary Reed .
Kate Beckett: These conversations that you had with Bronson , did he ever mention the word Valkyrie ?
Brad Parker: No . Why ? What 's Valkyrie ?
Special Agent Rachel McCord: Wait . The Secretary of Defense himself called to kill the story ? That 's unusual .
Brad Parker: Try unheard of . But I am guessing that the subject matter struck a nerve . Look , prior to his appointment as Secretary of Defense , General Reed was in charge of Central Command , which ran all missions out of Dreamworld .
Kate Beckett: Are you suggesting that the Secretary of Defense is hiding something ?
Brad Parker: You have another explanation ?

YEAR