There is a very good chance that Jeff moved to the garden. It is probably not the case that Mary went to the hallway. It is impossible that Lily is a lion. It is unlikely that if 'Jeff moved to the garden' or 'Lily is a lion' or both then Greg is a swan. It is probable that if 'Lily is a lion' or 'Jeff moved to the garden' or both then Fred dropped the apple. It is likely that if 'Lily is a lion and Jeff moved to the garden' then Sandra got the football.
There is a very good chance that 'Lily is a lion' or 'Jeff moved to the garden' or both.
There is a very good chance that 'Lily is a lion' or 'Jeff moved to the garden' or both.
It is unlikely that 'Lily is a lion' or 'Jeff moved to the garden' 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
  0.8::factA.
  0.25::factB.
  0.0::factC.
  %hop1
  0.2::factX:-or(factA,factC).
  0.7::factY:-or(factC,factA).
  0.7::factZ:-and(factC,factA).

  %hop2
  conclusion:-or(factC,factA).

  query(conclusion).
  
'Lily is a lion' or 'Jeff moved to the garden' or both.