It is highly unlikely that Winona is a mouse. It is likely that Brian is a frog. It is unlikely that Bernhard is a rhino. It is improbable that if either 'Winona is a mouse' or 'Bernhard is a rhino' but not both then Greg is yellow. It is highly likely that if 'Bernhard is a rhino and Winona is a mouse' then Lily is a lion. There is almost no chance that if 'Brian is a frog and Bernhard is a rhino' then Mary took the football.
It is highly unlikely that 'Lily is a lion' or 'Winona is a mouse' or both.
It is highly unlikely that 'Lily is a lion' or 'Winona is a mouse' or both.
It is likely that 'Lily is a lion' or 'Winona is a mouse' 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
  0.05::factA.
  0.7::factB.
  0.2::factC.
  %hop1
  0.1::factX:-xor(factA,factC).
  0.9::factY:-and(factC,factA).
  0.02::factZ:-and(factB,factC).

  %hop2
  conclusion:-or(factY,factA).

  query(conclusion).
  
'Lily is a lion' or 'Winona is a mouse' or both.