It is highly unlikely that Greg is a lion. It is probably not the case that Lily is a swan. It is probably not the case that John went to the bedroom. It is probably not the case that if either 'John went to the bedroom' or 'Lily is a swan' but not both then Antoine is hungry. There is almost no chance that if 'John went to the bedroom' or 'Lily is a swan' or both then Bernhard is a rhino. Chances are about even that if either 'Greg is a lion' or 'John went to the bedroom' but not both then Mary got the football.
It is probable that 'Antoine is hungry and John went to the bedroom'.
It is highly unlikely that 'Antoine is hungry and John went to the bedroom'.
It is probable that 'Antoine is hungry and John went to the bedroom'.

  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.
  0.25::factB.
  0.25::factC.
  %hop1
  0.25::factX:-xor(factC,factB).
  0.02::factY:-or(factC,factB).
  0.5::factZ:-xor(factA,factC).

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

  query(conclusion).
  
'Antoine is hungry and John went to the bedroom'.