TASK 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.
PROBLEM: Cornell:  I 'd made my first _ two _ , four English friends . I 'd seen my first Opera and the next morning when I got up at dawn to see the Sussex downs the music still haunted me .

SOLUTION: REFERENCE friends

PROBLEM: Maggie Evans:  You do know a way . If you know , you 've got to tell me . Because if I stay in here , I 'll die . Do you want me to die ?
Sarah Collins: No .
Maggie Evans: Well , then tell me . Is there anything you can tell me ?
Sarah Collins: I know a riddle .
Maggie Evans: A riddle ?
Sarah Collins: It tells the way to get out of here .
Maggie Evans: Well , what is it ?
Sarah Collins: One , two , away they flew . Three , four , by the door . Five , six , count the bricks . _ Seven _ , eight , the clue is grate . Nine , ten , home again .

SOLUTION: OTHER

PROBLEM: Nurse Lydia Wright:  Why 'd she do it ?
Dr. Mark Greene: Does n't matter why she did it . We do n't ask that about any other OD that comes through these doors and we do n't ask it about this _ one _ .

SOLUTION:
REFERENCE OD