It is highly unlikely that Emily is a mouse. There is a very good chance that Julius is gray. There is almost no chance that John went to the garden. It is almost certain that if 'Emily is a mouse and John went to the garden' then Antoine is hungry. Chances are slight that if 'Julius is gray and Emily is a mouse' then Bernhard is a swan. It is probably the case that if 'Julius is gray and John went to the garden' then Greg is yellow.
There is a very good chance that 'Julius is gray' or 'Emily is a mouse' or both.
There is a very good chance that 'Julius is gray' or 'Emily is a mouse' or both.
We doubt that 'Julius is gray' or 'Emily 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.
  0.8::factB.
  0.02::factC.
  %hop1
  0.95::factX:-and(factA,factC).
  0.1::factY:-and(factB,factA).
  0.7::factZ:-and(factB,factC).

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

  query(conclusion).
  
'Julius is gray' or 'Emily is a mouse' or both.