context: There is little chance that Fred is in the cinema. There is little chance that Mary moved to the garden. There is a better than even chance that Sumit is thirsty.
hypothesis: It is highly unlikely that 'Fred is in the cinema and Sumit is thirsty'.
valid_hypothesis: It is highly unlikely that 'Fred is in the cinema and Sumit is thirsty'.
invalid_hypothesis: It is likely that 'Fred is in the cinema and Sumit is thirsty'.
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.
    0.1::factB.
    0.6::factC.
    
  
    %hop2
    conclusion:-and(factA,factC).
  
    query(conclusion).
    
hypothesis_assertion: 'Fred is in the cinema and Sumit is thirsty'.