It is highly likely that Bernhard is a frog. It is likely that Lily is green. It is highly unlikely that Antoine is bored. It is likely that if either 'Bernhard is a frog' or 'Lily is green' but not both then Jessica is a sheep. It is probable that if 'Lily is green and Antoine is bored' then Brian is white. There is a better than even chance that if either 'Bernhard is a frog' or 'Lily is green' but not both then Sandra got the milk.
There is a better than even chance that 'Bernhard is a frog and Lily is green'.
There is a better than even chance that 'Bernhard is a frog and Lily is green'.
There is almost no chance that 'Bernhard is a frog and Lily is green'.

  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.
  0.05::factC.
  %hop1
  0.7::factX:-xor(factA,factB).
  0.7::factY:-and(factB,factC).
  0.6::factZ:-xor(factA,factB).

  %hop2
  conclusion:-and(factA,factB).

  query(conclusion).
  
'Bernhard is a frog and Lily is green'.