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. John Ridge:  D'you know what I 've learned in the time I 've been with Doomwatch ? We 've got a generation in which to grow up . My generation ! Your generation ! During our lifetime , that 's if we get to three score year and _ ten _ . We 've got to get rid of warheads buzzing about up there round the clock and in submarines , also cruising round the clock . During our lifetime we 've got to control population , to control ionizing radiation . We 've got to cleanse the rivers and the seas , we 've got to unclog the air . And we 've got to have made a bloody good start by the time we 're dead or homo sapiens has had it : men perish from the Earth . We 've got to start washing underneath the arms and stop sweeping the muck underneath the carpet . We 've got to plant more trees than we cut down . We 've got to recycle the Earth 's resources , even our excrememnt and urine . We 've got to abolish the petrol engine or pay more for it . We 've got to pay more for everything . Our money or our life !

REFERENCE year