That is true , but w I mean , so what you want to do  You want to say if uh obs you  if you observe something like Stephane observes , that C - one is not important , you can do two things.
Mm - hmm. Mm - hmm.
If you have a trained  trained recognizer , in the model , you know the  the  the  the component which  I  I mean di dimension  wh
Mm - hmm. All of the  all of the mean and variances that correspond to C - one , you put them to zero.