It is highly unlikely that Emily is a sheep. There is a better than even chance that Greg is a rhino. It is highly likely that Sumit is thirsty. It is likely that if 'Sumit is thirsty and Greg is a rhino' then Julius is yellow. There is almost no chance that if either 'Greg is a rhino' or 'Emily is a sheep' but not both then Daniel left the milk. It is highly unlikely that if 'Emily is a sheep' or 'Greg is a rhino' or both then Lily is a rhino.
There is a better than even chance that 'Daniel left the milk' or 'Greg is a rhino' or both.
There is a better than even chance that 'Daniel left the milk' or 'Greg is a rhino' or both.
It is highly unlikely that 'Daniel left the milk' or 'Greg is a rhino' or 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
  0.05::factA.
  0.6::factB.
  0.9::factC.
  %hop1
  0.7::factX:-and(factC,factB).
  0.02::factY:-xor(factB,factA).
  0.05::factZ:-or(factA,factB).

  %hop2
  conclusion:-or(factY,factB).

  query(conclusion).
  
'Daniel left the milk' or 'Greg is a rhino' or both.