Unique? Yes is the best answer, although there is a case to be made for No.
Fictional? Yes. *applause*

Work of fiction? Yes *applause*
Apocryphal? No.
Connected with politics? *amused laughter from audience* Some would say yes. Others (perhaps more?) would say no. One reasonable answer is "I don't know". Another is "if you like".
One word answer? No.

[IS,P!] At least as a working definition I take 'human construct' to mean something that requires the human brain for its existence. Most abstract things seem to be human constructs, but not all are. I would say that 'pain', for example, is not a human construct. There are thorny issues when we get into the old debate about whether mathematical issues are created or discovered. Is the following a human construct: on a Euclidean plane, any right-angled triangle has the property that the square on the hypotenuse equals the sum of the squares on the other two sides? I'm not sure.

(CdM) The property of plane right-angled triangles that you mention exists regardless of whether humans are aware of it or not. Maybe a better example would have been imaginary numbers which have no physical meaning until humans invented them and ascribed a meaning to them (a frequency, for example) but are a supremely useful mathematical tool.

Religious? *more audience laughter*. It is not a religious work, but if you are asking if it has religious connections, I point you to the answer to "connected with politics", above.
Written in last 100 years? Yes.

[Rosie] Well, but there is also something odd about saying the Pythagorean theorem is not a human construct. As I say, the question of whether mathematics is invented or discovered has troubled philosophers of science for a long time, and I don't think it's as straightforward as you suggest, even in this case. Is the number "2" a human construct? But I'm getting out of my depth here, so I'll let the real mathematicians weigh in if they like.

Rosie] Isn't the concept of a 'right-angle' a human construct?

Last 50 years? No.
Originally written in English? *audience gasps and starts disputing amongst themselves animatedly* The best answer is clearly no, but a case could be made for yes.
A novel? No.

Just a wild stab in the dark...

Speaking of wild stabs...

[Chalky] No, I don't think it's that. :-)

Poem? No.
Kid-intended? *audience laughter*. No.
Jabberwocky? *audience snickersnackering* No.
Scots wha hae? *audience chants "Jon-ny Wil-kin-son, Jon-ny Wil-kin-son* No.
Where am I? Sleeping. I live on the other side of the world from most of you lot, remember.

Work based on another work? Another surprisingly difficult question. The best answer is No (corresponding to the best answer to "originally written in English?"), but a case could me made for Yes (corresponding to the case that could be made for "not originally written in English").

Pseudoscience? Not in any way that I am aware of.
Lord of the Rings? No. (I'm pretty confident that was originally written in English. :-) )

Chalky? Where are you?

[CdM] I thought Tolkien translated it from the Red Book of Westmarch.

[CdM] Sorry - I kinda thought I had the time difference worked out. [and, selfishly, fail to acknowledge that you may have 'other things to do' at the end of a working day].

Written evidence? I'm not sure what you mean. You already know that this is a work of fiction written between 50 and 100 years ago, and that a case could be made for it having been originally written in English.

As to where I was, it is true that your poem question came in before 10pm Singapore time, so on any given day there is a good chance I would be online then -- but not last night, as it happened.

The play's the thing? Yes. *applause*