There is little chance that Jeff discarded the milk. It is likely that Mary went to the garden. It is impossible that Lily is a frog. It is probable that if 'Mary went to the garden' or 'Jeff discarded the milk' or both then Winona is a mouse. There is almost no chance that if 'Lily is a frog' or 'Mary went to the garden' or both then Daniel took the football. There is a better than even chance that if 'Mary went to the garden' or 'Lily is a frog' or both then Antoine is hungry.
Chances are slight that 'Winona is a mouse' or 'Antoine is hungry' or both.
There is a better than even chance that 'Winona is a mouse' or 'Antoine is hungry' or both.
Chances are slight that 'Winona is a mouse' or 'Antoine is hungry' 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
  0.1::factA.
  0.7::factB.
  0.0::factC.
  %hop1
  0.7::factX:-or(factB,factA).
  0.02::factY:-or(factC,factB).
  0.6::factZ:-or(factB,factC).

  %hop2
  conclusion:-or(factX,factZ).

  query(conclusion).
  
'Winona is a mouse' or 'Antoine is hungry' or both.