Where to find a Vocabulary for Education related Credentials

Hi All,
I'm working on creating some VCs for education related claims. I have been using vc.js by Transmute for this purpose.

Their tests are based on the vocabulary based on https://w3c-ccg.github.io/traceability-vocab/#abstract (https://w3c-ccg.github.io/traceability-vocab/contexts/traceability-v1.jsonld).

I'm trying to find out whether there is such a defined vocabulary for education related credentials (certificates, badges and transcripts). 



Any guidance/direction would be highly appreciated.

Thank you,



Chim