We doubt that Mary left the football. There is a better than even chance that Lily is a lion. There is little chance that Sandra got the football. There is a better than even chance that if 'Sandra got the football' or 'Mary left the football' or both then Jessica is a wolf. It is highly likely that if 'Mary left the football and Sandra got the football' then Winona is a sheep. Chances are about even that if 'Sandra got the football' or 'Lily is a lion' or both then Bill went to the kitchen.
Chances are slight that 'Mary left the football and Lily is a lion'.
Chances are slight that 'Mary left the football and Lily is a lion'.
It is almost certain that 'Mary left the football and Lily is a lion'.

  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
  0.2::factA.
  0.6::factB.
  0.1::factC.
  %hop1
  0.6::factX:-or(factC,factA).
  0.9::factY:-and(factA,factC).
  0.5::factZ:-or(factC,factB).

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

  query(conclusion).
  
'Mary left the football and Lily is a lion'.