Cat A first round= will live on knees but not known if they swallow
Cat A second round= have learned to live on knees and has learned to swallow
Cat B= will not live on knees and does not swallow. Required to attend a year long course to learn to live on knees and is taught to swallow.
Cat C= Very hard to teach to live on knees and swallowing. Usually has to attend a 2-3 year course on living on knees and swallowing.
Cat D1= will never live on knees and will never swallow
Cat D2= Messed up. Too much teeth while swallowing and left a mark. Will be reassessed in 1 year after re-training.
Compare this to the dude's answer.