context: It is improbable that Daniel left the milk. Chances are about even that Lily is a lion. There is almost no chance that Mary moved to the garden.
hypothesis: It is highly unlikely that 'Lily is a lion and Daniel left the milk'.
valid_hypothesis: It is highly unlikely that 'Lily is a lion and Daniel left the milk'.
invalid_hypothesis: There is a better than even chance that 'Lily is a lion and Daniel left the milk'.
problog: 
    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.
    0.5::factB.
    0.02::factC.
    
  
    %hop2
    conclusion:-and(factB,factA).
  
    query(conclusion).
    
hypothesis_assertion: 'Lily is a lion and Daniel left the milk'.