Error I've got:

Incorrect match: words not present in the string.

Your output: gmrfmwngmrfmwn, gmrfmwn, gmrfmwngmrfmwngmrfmwn.

One possible valid answer: gmrfmwn, dzt, rvjqefen

Expected: True

But was: False

There is no info in the Kata description that I should also look for a substring, because this is how I understand this error:

"gmrfmwngmrfmwn" - this should count as two occurances of "gmrfmwn"

"gmrfmwngmrfmwngmrfmwn" this should count as three occurances of "gmrfmwn"