It is highly likely that Brian is a swan. There is a very good chance that Lily is a lion. It is almost certain that John moved to the garden. Chances are about even that if 'John moved to the garden' or 'Brian is a swan' or both then Daniel took the apple. There is a better than even chance that if either 'Brian is a swan' or 'John moved to the garden' but not both then Emily is a mouse. It is likely that if 'John moved to the garden' or 'Brian is a swan' or both then Yann is bored.
It is improbable that 'Brian is a swan and John moved to the garden'.
It is highly likely that 'Brian is a swan and John moved to the garden'.
It is improbable that 'Brian is a swan and John moved to the garden'.

  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.
  0.8::factB.
  0.95::factC.
  %hop1
  0.5::factX:-or(factC,factA).
  0.6::factY:-xor(factA,factC).
  0.7::factZ:-or(factC,factA).

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

  query(conclusion).
  
'Brian is a swan and John moved to the garden'.