It is unlikely that Emily is a sheep. It is highly likely that Bernhard is a swan. It is probable that Daniel got the football. There is a better than even chance that if 'Daniel got the football' or 'Bernhard is a swan' or both then Lily is a lion. We doubt that if 'Emily is a sheep' or 'Bernhard is a swan' or both then Jessica is a cat. There is almost no chance that if either 'Daniel got the football' or 'Bernhard is a swan' but not both then Brian is white.
We believe that 'Emily is a sheep and Jessica is a cat'.
It is highly unlikely that 'Emily is a sheep and Jessica is a cat'.
We believe that 'Emily is a sheep and Jessica is a cat'.

  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
  0.2::factA.
  0.9::factB.
  0.7::factC.
  %hop1
  0.6::factX:-or(factC,factB).
  0.2::factY:-or(factA,factB).
  0.02::factZ:-xor(factC,factB).

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

  query(conclusion).
  
'Emily is a sheep and Jessica is a cat'.