It is probably not the case that Daniel put down the milk. We believe that Emily is a wolf. It is impossible that Jeff left the apple. There is almost no chance that if either 'Daniel put down the milk' or 'Emily is a wolf' but not both then Lily is a frog. We doubt that if 'Daniel put down the milk and Emily is a wolf' then John went to the kitchen. It is improbable that if 'Daniel put down the milk' or 'Emily is a wolf' or both then Brian is yellow.
It is likely that 'Daniel put down the milk' or 'Lily is a frog' or both.
It is probably not the case that 'Daniel put down the milk' or 'Lily is a frog' or both.
It is likely that 'Daniel put down the milk' or 'Lily is a frog' 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
  0.25::factA.
  0.75::factB.
  0.0::factC.
  %hop1
  0.02::factX:-xor(factA,factB).
  0.2::factY:-and(factA,factB).
  0.1::factZ:-or(factA,factB).

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

  query(conclusion).
  
'Daniel put down the milk' or 'Lily is a frog' or both.