It is probably not the case that John put down the apple. It is unlikely that Emily is a wolf. There is little chance that Lily is a frog. It is likely that if either 'Emily is a wolf' or 'John put down the apple' but not both then Antoine is thirsty. It is unlikely that if 'John put down the apple' or 'Lily is a frog' or both then Greg is green. Chances are about even that if 'Emily is a wolf' or 'Lily is a frog' or both then Mary went to the kitchen.
It is probably not the case that 'Mary went to the kitchen' or 'Emily is a wolf' or both.
It is probably not the case that 'Mary went to the kitchen' or 'Emily is a wolf' or both.
It is likely that 'Mary went to the kitchen' or 'Emily is a wolf' 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
  0.25::factA.
  0.2::factB.
  0.1::factC.
  %hop1
  0.7::factX:-xor(factB,factA).
  0.2::factY:-or(factA,factC).
  0.5::factZ:-or(factB,factC).

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

  query(conclusion).
  
'Mary went to the kitchen' or 'Emily is a wolf' or both.