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.
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Question: Penny Sycamore:  Rheba , I think I 'm going to put this play away for a while and go back to the war play .
Rheba: Oh I always liked that _ one _ , the war play ! A BOOM ! A BOOM !

Answer: REFERENCE play


Question: Charles Aitken:  Seven cities to Atlantis ? You know , the Greeks always claimed there were _ nine _ .
Atmir: Plato was not always right .
Charles Aitken: You know about our history ?
Atmir: Far more than you realize .

Answer: REFERENCE cities


Question: Dr. Temperance 'Bones' Brennan:  I thought I 'd start my speech with a joke
Dr. Temperance 'Bones' Brennan: Right
Dr. Temperance 'Bones' Brennan: Erwin Schrödinger gets pulled over by the police for speeding . The officer says : " What 's in the trunk ? " Schrödinger said : " A cat " . The officer said : " Well , I need to see " , so the police officer opens the trunk , he says : " This cat is dead . " Schrödinger says : " Well , it is now " .
Special Agent Seeley Booth: Give me heads up when the joke 's coming
Dr. Temperance 'Bones' Brennan: Well , that was a joke , Booth . Well , it 's based on Schrödinger 's famous thought experiment
Special Agent Seeley Booth: Ah , you know what , I usually judge a joke by how funny it is . And there 's no yuks on that _ one _
Dr. Temperance 'Bones' Brennan: Great . Now my speech for the forensic convention has no beginning
Special Agent Seeley Booth: Try this for a joke . You hear about the , uh , restaurant on the moon ? Great food , but no atmosphere
Dr. Temperance 'Bones' Brennan: That 's not a science joke
Special Agent Seeley Booth: Yes it is . It 's got the word " moon " , it 's got the word " atmosphere " in it . It 's very sciencery

Answer:
REFERENCE joke