Detailed Instructions: 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.
Q: John Harrison:  I may not be spared to complete another watch , but I 've begun _ one _ . It will not , gentleman , be a copy , because I am mindful of the Act of Queen Anne , to which I 've clung for over 50 years like a , like a shipwrecked sailor to a barrel -- " to be practical , " and that 's been my gospel and my creed . I have an idea that the heat compensation must be within the balance of the watch and not around it . And this morning I made this.[He shows a heat - compensated balance wheel . I tried the idea in my first sea clock , over 40 years ago . I failed . I did n't undertand it ; so much I did n't understand . A compensating balance wheel will simplify the adjustment of the machine , so others may make my watches more easily ... should God grant me the time to complete my labours .
A:
REFERENCE watch