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.

Let me give you an example: Jess Mastriani: No, I don't want another crooler, thank you very much.
 FBI Agent Nicole Scott: But it's good for you. It's got... honeyglaze. Please die for this crooler, Jess.
 Jess Mastriani: I've had _ two _ already. Who eats three croolers in a night? 
FBI Agent Nicole Scott: Take a look. [Nicole takes a huge bite] Mmmmm, Mmmmm, Mmmmm!
The answer to this example can be: REFERENCE crooler
Here is why: In this example, the number two refers to something that appears in this text. In this example, it refers to the word: crooler.

OK. solve this:
Professor Hubert Farnsworth:  Interesting ... It seems Seymour died at the ripe old age of fifteen .
Fry: Fifteen ? You mean ... he lived for twelve more years after I got frozen ?
Professor Hubert Farnsworth: Indeed .
Fry: Stop the cloning .
Professor Hubert Farnsworth: Oh , sure ! Smash the * smart guy 's * machine ...
Bender: Fry , what 's wrong ?
Fry: Think about it : Seymour lived a full life after I was gone ... He probably even added new songs to his repertoire .
Bender: But that 's a good thing . " Walkin ' On Sunshine " sucks noodles .
Fry: I had Seymour ' till he was _ three _ . That 's when I knew him , and that 's when I loved him ... I 'll never forget him ... But he forgot me a long , long time ago ...
Answer:
AGE