There is almost no chance that Winona is a cat. There is a better than even chance that Jeff moved to the garden. It is unlikely that Mary went to the bedroom. Chances are slight that if 'Mary went to the bedroom' or 'Winona is a cat' or both then Greg is a rhino. There is little chance that if either 'Jeff moved to the garden' or 'Winona is a cat' but not both then Julius is a frog. It is improbable that if either 'Winona is a cat' or 'Mary went to the bedroom' but not both then Sandra dropped the milk.
There is almost no chance that 'Sandra dropped the milk and Jeff moved to the garden'.
There is almost no chance that 'Sandra dropped the milk and Jeff moved to the garden'.
It is probably the case that 'Sandra dropped the milk and Jeff 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
  0.02::factA.
  0.6::factB.
  0.2::factC.
  %hop1
  0.1::factX:-or(factC,factA).
  0.1::factY:-xor(factB,factA).
  0.1::factZ:-xor(factA,factC).

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

  query(conclusion).
  
'Sandra dropped the milk and Jeff moved to the garden'.