It is almost certain that Bernhard is a frog. Chances are slight that Lily is a rhino. It is certain that Mary moved to the garden. It is almost certain that if 'Bernhard is a frog' or 'Lily is a rhino' or both then John put down the milk. It is unlikely that if 'Lily is a rhino' or 'Mary moved to the garden' or both then Winona is a mouse. It is improbable that if either 'Lily is a rhino' or 'Mary moved to the garden' but not both then Jason is bored.
It is probable that 'Lily is a rhino and Bernhard is a frog'.
It is improbable that 'Lily is a rhino and Bernhard is a frog'.
It is probable that 'Lily is a rhino and Bernhard is a frog'.

  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
  0.95::factA.
  0.1::factB.
  1.0::factC.
  %hop1
  0.95::factX:-or(factA,factB).
  0.2::factY:-or(factB,factC).
  0.1::factZ:-xor(factB,factC).

  %hop2
  conclusion:-and(factB,factA).

  query(conclusion).
  
'Lily is a rhino and Bernhard is a frog'.