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: Dr. Clark Murray:  Note the rectangular bruising around these wounds here and here .
Kate Beckett: Mm - hmm .
Dr. Clark Murray: Caused by the hilt of of the knife striking with force enough to compress the skin .
Kate Beckett: And as a result , the injuries penetrate deeper than the actual length of the blade .
Dr. Clark Murray: He 's also honed the blade so fine , it 's brittle enough for bits to break when it strikes bone , which is why slivers of blade were found inside both of his victims . We now know those slivers come from the same murder weapon .
Kate Beckett: Wait , two victims ? How many people has he killed ?
Lanie Parish: _ Five _ , that we know of .
Kate Beckett: So we 're looking at a serial .
Dr. Clark Murray: Well , yes and no . We believe we 're dealing with a professional . Someone with extensive military training .
Kate Beckett: A contract killer .
Dr. Clark Murray: I used tomographic reconstruction of Coonan 's wounds to generate a 3D model of the blade used . It 's a Special Operations Group knife , the kind favored by Special Forces in Gulf War I. He kills with a single blow , using these other wounds to camouflage the skill with which the initial stroke was delivered . The very same method and the very same weapon that the killer employed ten years ago .
Kate Beckett: Lanie ...
Lanie Parish: I 'm so sorry .
Dr. Clark Murray: Detective Beckett , there is no doubt in my mind that Jack Coonan was killed by the same man who murdered your mother .

REFERENCE victims