context: It is highly likely that Bill moved to the office. It is probably the case that Bernhard is a lion. It is improbable that Emily is a mouse.
hypothesis: It is highly unlikely that 'Bernhard is a lion and Emily is a mouse'.
valid_hypothesis: It is highly unlikely that 'Bernhard is a lion and Emily is a mouse'.
invalid_hypothesis: It is highly likely that 'Bernhard is a lion and Emily 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
    0.9::factA.
    0.7::factB.
    0.1::factC.
    
  
    %hop2
    conclusion:-and(factB,factC).
  
    query(conclusion).
    
hypothesis_assertion: 'Bernhard is a lion and Emily is a mouse'.