Reminds me of an ex g/f. Being Polish she had some interesting, and often amusing vowel pronunciations. Usually ending up with a new, super vowel, which sounded like a combination of A U and O all in one. Deducing the difference between bus, base and boss was purely down to context.
(Sorry Anna, but we know it's true!)...
Anyway, she was hosting a meeting in the UK, and was having great difficulty with the English Males keeping straight faces... It appears her pronunciation of "Focus group" left a lot to be desired!