Chances are slight that Winona is a wolf. It is probable that Greg is yellow. It is almost certain that Julius is a rhino. There is a better than even chance that if either 'Julius is a rhino' or 'Greg is yellow' but not both then Jessica is a sheep. It is probably not the case that if either 'Winona is a wolf' or 'Julius is a rhino' but not both then Mary left the football. It is probably the case that if 'Greg is yellow' or 'Julius is a rhino' or both then Bernhard is yellow.
It is almost certain that 'Julius is a rhino' or 'Jessica is a sheep' or both.
It is almost certain that 'Julius is a rhino' or 'Jessica is a sheep' or both.
It is impossible that 'Julius is a rhino' or 'Jessica is a sheep' or both.

  and(A,B) :- A,B.
  or(A,B) :- A;B.
  nand(A,B) :- not(and(A,B)).
  nor(A,B) :- not(or(A,B)).
  xor(A,B) :- or(A,B), nand(A,B).

  %hop0
  0.1::factA.
  0.7::factB.
  0.95::factC.
  %hop1
  0.6::factX:-xor(factC,factB).
  0.25::factY:-xor(factA,factC).
  0.7::factZ:-or(factB,factC).

  %hop2
  conclusion:-or(factC,factX).

  query(conclusion).
  
'Julius is a rhino' or 'Jessica is a sheep' or both.