There is almost no chance that Lily is a rhino. It is almost certain that Winona is a cat. There is almost no chance that Yann is tired. It is likely that if either 'Lily is a rhino' or 'Winona is a cat' but not both then John moved to the office. It is highly unlikely that if 'Winona is a cat' or 'Yann is tired' or both then Julius is white. It is probably not the case that if 'Lily is a rhino and Yann is tired' then Greg is gray.
It is almost certain that 'Winona is a cat' or 'Yann is tired' or both.
It is almost certain that 'Winona is a cat' or 'Yann is tired' or both.
It is highly unlikely that 'Winona is a cat' or 'Yann is tired' 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
  0.02::factA.
  0.95::factB.
  0.02::factC.
  %hop1
  0.7::factX:-xor(factA,factB).
  0.05::factY:-or(factB,factC).
  0.25::factZ:-and(factA,factC).

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

  query(conclusion).
  
'Winona is a cat' or 'Yann is tired' or both.