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.

Steve Navarro:  I put a tracker on the device . I can tell you where it is .
Kate Morgan: You lying bastard !
Jack Bauer: Please , put the weapon down and let him talk !
Steve Navarro: I can give you the tracker 's code .
Kate Morgan: I do n't believe you . I 'm going to put a bullet in your head !
Jack Bauer: Kate , Kate ! Put the weapon down !
Steve Navarro: Three , eight , four , _ six _ , nine , romeo . Three , alpha , four , six , nine , romeo . That 's the code . I 'm telling you the truth .
Kate Morgan: Did you get that ?
Jack Bauer: Gavin ?
Gavin Leonard: Running the trace now . Seems to be legit . It 's already triangulating within a four mile area .
Jack Bauer: Copy that . He 's logging onto the override device . It worked .
Kate Morgan: You 're done . You 're going to be executed for murder and for treason . And I 'm going to be there to watch .
REFERENCE code