Re: A special case?
"ChatGPT will happily reproduce, for example, "Daffodils" by Wordsworth if you simply ask"
Quite right, your examples are not artefact, they're the statistically most probable responses to specific requests -- that's how an LLM is supposed to work. But the point of interest here is why essentially arbitrary input with very "unlikely" statistical properties results in responses that have no bearing on the input but appear to represent fragmants from real sources.