Definition of dutch pos tags

I have found the dutch tagset (CHN tagset). Please let me know the definition of the below tagset.

Dutch pos tagset:
[languagetool/dutch_tags.txt at master · languagetool-org/languagetool · GitHub ]

This is a practical set for LT, not a formal one. I would be willing to explain it all, but not without a compelling reason, because it is a lot of work. LT is free, our time is not.