It is almost certain that Lily is a rhino. There is a better than even chance that Winona is a mouse. We believe that Mary moved to the garden. It is almost certain that if 'Lily is a rhino and Winona is a mouse' then John took the milk. It is certain that if 'Mary moved to the garden' or 'Winona is a mouse' or both then Sandra left the football. Chances are slight that if 'Lily is a rhino and Winona is a mouse' then Julius is white.
Chances are about even that 'John took the milk and Winona is a mouse'.
Chances are about even that 'John took the milk and Winona is a mouse'.
It is highly unlikely that 'John took the milk and Winona 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
  0.95::factA.
  0.6::factB.
  0.75::factC.
  %hop1
  0.95::factX:-and(factA,factB).
  1.0::factY:-or(factC,factB).
  0.1::factZ:-and(factA,factB).

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

  query(conclusion).
  
'John took the milk and Winona is a mouse'.