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.

Ex Input:
DC Endeavour Morse:  Strange , there 's a blackboard there . Could you ... ? Each element is assigned a symbol : Typically an abbreviation of its name together with a unique one or two - digit atomic number . Can you write these down as I call then off ? So , 74 gives us Tungsten . 17 , Chlorine . _ 18 _ , Argon . 19 , Potassium . The elements spell out a name .
Chief Superintendent Bright: T.C.A.P Tucap ?
DC Endeavour Morse: No , not quite , sir , but you 're on the right lines .
DC Endeavour Morse: Um
DC Endeavour Morse: , the chemical symbol for Tungsten is n't Tu as you might expect . It 's W from the German Wolframite . And Potassium is n't P as you might expect but K after the Latin Kalium . Taken together they 're Tungsten ...
DC Endeavour Morse: ...
DC Endeavour Morse: Chorine ...
DC Endeavour Morse: ...
DC Endeavour Morse: Argon ...
DC Endeavour Morse: ...
DC Endeavour Morse: and Potassium .
DC Endeavour Morse: W
DC Endeavour Morse: - C - L - A - R - K. Wallace Clark .
Chief Superintendent Bright: Good
Chief Superintendent Bright: grief .
DI Fred Thursday: Derek 's father .
Chief Superintendent Bright: But there 's nothing to say he even knew the vicar .
DC Endeavour Morse: Ivy Clark , sir . Wallace 's wife is buried in the churchyard . The next plot but one to Lady Daphne Sloan . Reverend Monkford performed the service .
PC Jim Strange: Bloody hell , matey . That 's ...
DI Fred Thursday: Elementary .

Ex Output:
REFERENCE number


Ex Input:
Carl:  Heh heh heh HEYYYYYYYY ! Guess who this is ?
Donna Bryson: H ... hello ?
Carl: Haha , that 's what your mom said . BEFORE I SHAVED HER BACK ! Hahahhaaaa ... yeah ... no , actually , I did talk to your mom , and she said to call you .
Donna Bryson: Oh ... okay , well ... do you know what time it is ?
Carl: Yeah , I keep the blinds closed , so it 's kinda disorienting . But you know , I do n't want the government in my business .
Donna Bryson: It 's _ two _ in the morning .
Carl: Awww , it 's my bedtime ! C'mon , what happened to the Donna I remember ? The one who KNEW how to party BACK IN ' 81 ? ...
Donna Bryson: ... oh ... yeah ... you 're ... that guy ... with ...
Carl: Oh , come on ... it 's Carl ! Class of ' 81 !
Donna Bryson: Oh ... okay ...
Carl: Well , I was n't there for long . That place was a scam ! I left it in the dust . But enough about me , Donna ... you , uh , still got that cleavage ? ...
Carl: Heh
Carl: heh heh heh ... still , uh , SMUGGLING , UH , BALLOONS ? ... WHEREVER YOU GO ? ... heh heh heh heh ... Where are you now ?
Carl: Hello ? ...
Carl: Yeah
Carl: , well , uh , maybe you should n't , uh , BOOTY CALL ME when I 've got guests here ! Ohhhh , God , she is so horny for me . Alright , that 's the last of the W 's . There 's a " Z " left but , ugh , got that unibrow ... eh , screw it , look up Zambrano . Normally I would n't do a fat chick from the flag corps , but uh ... IT IS A NEW ERA ! Heh heh heh heh ...
Carl: ...
Carl: of loneliness ...
Carl: ...
Carl: Oh , God .

Ex Output:
TIME


Ex Input:
Hazel Edwards:  Oh , Martin stop cowering ! Do n't you recognize a theatre mask when you see _ one _ ?
Martin Edwards: Oh , oh , thank heavens . Do you know what I thought that it was for one horrible moment ? Your mother come to stay !

Ex Output:

REFERENCE mask