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.

Example Input: Edward Snowden:  So , this is data collection for the month of March worldwide , emails and Skype calls . So France , 70 million . Germany , 500 million . Brazil , two billion . Inside the U.S. , 3.1 billion emails and calls . That 's not including any of the telecom company data .
NSA Dep. Director Lowell: Okay , so what 's the collection in Russia ?
Edward Snowden: Russia is _ 1.5 _ billion .
NSA Dep. Director Lowell: Wait , so we 're collecting twice as much in the U.S. as we are in Russia ?
Example Output: REFERENCE calls

Example Input: Dr. Temperance 'Bones' Brennan:  Yeah it 's pretty big , right . Bigger than the one you have .
Special Agent Seeley Booth: Excuse me , it 's not the size that matters . It 's how you * use * it .
Dr. Temperance 'Bones' Brennan: Well I think size is pretty important .
Special Agent Seeley Booth: The point is you should n't have a gun in the first place .
Angela Montenegro: If you do have _ one _ , bigger is always better .
Example Output: REFERENCE gun

Example Input: Gentek:  I accept my fault and seek forgiveness . My mind and flesh which should be _ two _ are one , and the way was hid by blood .
Captain Jabel: The flesh is strong and we are weak .
Example Output:
REFERENCE mind