There is almost no chance that Jessica is a mouse. It is likely that Julius is a rhino. There is a better than even chance that Jeff went to the bedroom. It is highly likely that if 'Julius is a rhino' or 'Jessica is a mouse' or both then Daniel left the apple. It is probably not the case that if either 'Jeff went to the bedroom' or 'Jessica is a mouse' but not both then Winona is a sheep. There is a very good chance that if either 'Jessica is a mouse' or 'Julius is a rhino' but not both then Greg is a frog.
There is almost no chance that either 'Jessica is a mouse' or 'Daniel left the apple' but not both.
There is a better than even chance that either 'Jessica is a mouse' or 'Daniel left the apple' but not both.
There is almost no chance that either 'Jessica is a mouse' or 'Daniel left the apple' but not both.

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

  %hop2
  conclusion:-xor(factA,factX).

  query(conclusion).
  
Either 'Jessica is a mouse' or 'Daniel left the apple' but not both.