It is probably not the case that Lily is a lion. It is improbable that Jessica is a cat. We believe that Daniel put down the milk. It is improbable that if either 'Lily is a lion' or 'Jessica is a cat' but not both then Brian is yellow. We doubt that if either 'Jessica is a cat' or 'Daniel put down the milk' but not both then Mary got the apple. It is likely that if 'Lily is a lion' or 'Daniel put down the milk' or both then Julius is a rhino.
Chances are about even that 'Daniel put down the milk and Julius is a rhino'.
Chances are about even that 'Daniel put down the milk and Julius is a rhino'.
It is impossible that 'Daniel put down the milk and Julius is a rhino'.

  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
  0.25::factA.
  0.1::factB.
  0.75::factC.
  %hop1
  0.1::factX:-xor(factA,factB).
  0.2::factY:-xor(factB,factC).
  0.7::factZ:-or(factA,factC).

  %hop2
  conclusion:-and(factC,factZ).

  query(conclusion).
  
'Daniel put down the milk and Julius is a rhino'.