[protege-discussion] Can't classify the OWL class properly, Why?

[刘康]

if there are 3 class A, B, C is asserted, and A has the property pA.
If defines the C with the assertion that C is the class A that the
property pA only class B (NECESSARY & SUFFICIENT: class A, pA only B),
I find the protege can't classify the individual properly, could you
tell me why?
Thanks!
                                                                      LIU Kang