It is probably the case that Jeff moved to the garden. It is highly likely that Julius is a rhino. We doubt that Lily is a lion. It is certain that if either 'Julius is a rhino' or 'Lily is a lion' but not both then Sandra put down the milk. It is likely that if either 'Jeff moved to the garden' or 'Julius is a rhino' but not both then Mary went to the office. It is probably the case that if 'Lily is a lion' or 'Julius is a rhino' or both then Greg is a frog.
It is likely that 'Mary went to the office and Lily is a lion'.
It is highly unlikely that 'Mary went to the office and Lily is a lion'.
It is likely that 'Mary went to the office 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
  0.7::factA.
  0.9::factB.
  0.2::factC.
  %hop1
  1.0::factX:-xor(factB,factC).
  0.7::factY:-xor(factA,factB).
  0.7::factZ:-or(factC,factB).

  %hop2
  conclusion:-and(factY,factC).

  query(conclusion).
  
'Mary went to the office and Lily is a lion'.