Given the task definition and input, reply with output. 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.

Kate Beckett:  The report on the Dragunov sniper rifle said that the barrel twist rate was 320 millimeters . But the newer version is _ 240 _ , right ?
Vasiliy Zhirov: Yes , it was changed in the ' 90s .
Kate Beckett: So then why would our sniper use an older model when the newer one is so much more powerful and accurate ?
Rita: It ... it must have been the only thing the assassin had access to . Only who the hell leaves around a Russian sniper rifle from the 1980s lying around ?
Vasiliy Zhirov: Molniya .
Kate Beckett: Lightning ?
Vasiliy Zhirov: It 's an old KGB code name for weapon caches planted in NATO countries to support the agents in the field . After the dissolution of the Soviet Union , many were abandoned .
Rita: But someone in the field would know where they were .
Kate Beckett: Like Frank . Except he 's all lawyered up .
Vasiliy Zhirov: Yes , but I , too , know where these old caches are . We search those caches , we could find our killer .
REFERENCE millimeters