Right now the only phenomena that are named are the number of arguments: 0 to 4. It would be great to fill out the phenomenon/example table with respect to the phenomena (really helps when someone compiles a new test suite for their language, and also to show people, discuss in papers and so on).
But I don't feel like I can do it; I think it should be someone more familiar with the history of the test suite.
https://github.com/delph-in/docs/wiki/MatrixMrsTestSuite