This is a great analysis.
Additionally, I think the statistical approach to NLU ignores the fact that day-to-day communication takes a lot of lying — not the diabolical misrepresentations done with malintent, but the general polite and kind lying we all do every day.
“How are you?”
“I am fine. (Lie)
You are looking very nice today.” (Lie)
“You are being kind. (Lie)
Listen, don’t worry about the F’up yesterday. (Lie)
Nobody noticed a thing.” (Lie)
“Oh. I have forgotten all about it.” (Lie)
“Yeah! These things don’t matter in the long run. (Lie)
I don’t think it’s important at all. (Lie)
But maybe don’t use swear words in mass email to employees.”
There is only one sentence in the 10 above which can be thought of as factual (the last one), yet it is a very normal and well meaning human conversation.