[animalCrax0rz]

There is this, too, from 4 years ago, which seems reasonable in my not-very-well-informed opinion (speaking of which, I'm not sure the work referenced here can deal with hyphenated negation, but it should be simple to include)

https://www.aclweb.org/anthology/P14-1007.pdf

code: https://github.com/ffancellu/NegNN

[DenisM]

Thank you, I knew my effort was not for naught!