context: There is a very good chance that Mary is in the hallway. It is almost certain that Winona is a mouse. It is certain that Bernhard is yellow.
hypothesis: There is little chance that 'Bernhard is yellow and Winona is a mouse'.
valid_hypothesis: It is almost certain that 'Bernhard is yellow and Winona is a mouse'.
invalid_hypothesis: There is little chance that 'Bernhard is yellow and Winona is a mouse'.
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
    0.8::factA.
    0.95::factB.
    1.0::factC.
    
  
    %hop2
    conclusion:-and(factC,factB).
  
    query(conclusion).
    
hypothesis_assertion: 'Bernhard is yellow and Winona is a mouse'.