It is highly likely that Jessica is a mouse. We believe that Julius is a frog. There is little chance that Jason is tired. It is likely that if either 'Jason is tired' or 'Julius is a frog' but not both then Bernhard is green. It is unlikely that if either 'Jason is tired' or 'Julius is a frog' but not both then Brian is a rhino. We believe that if 'Julius is a frog and Jason is tired' then John got the apple.
It is almost certain that 'Bernhard is green and Jessica is a mouse'.
Chances are about even that 'Bernhard is green and Jessica is a mouse'.
It is almost certain that 'Bernhard is green and Jessica is a mouse'.

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

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

  query(conclusion).
  
'Bernhard is green and Jessica is a mouse'.