It is highly likely that Bernhard is a rhino. It is certain that Emily is a wolf. It is almost certain that Sandra got the milk. There is little chance that if 'Emily is a wolf and Bernhard is a rhino' then Brian is a frog. We doubt that if 'Bernhard is a rhino' or 'Sandra got the milk' or both then John went to the office. It is almost certain that if 'Bernhard is a rhino' or 'Emily is a wolf' or both then Lily is white.
It is probably the case that 'John went to the office and Bernhard is a rhino'.
We doubt that 'John went to the office and Bernhard is a rhino'.
It is probably the case that 'John went to the office and Bernhard is a rhino'.

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

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

  query(conclusion).
  
'John went to the office and Bernhard is a rhino'.