It is unlikely that Brian is a frog. We doubt that Daniel got the football. We doubt that Lily is a swan. There is a better than even chance that if 'Brian is a frog' or 'Daniel got the football' or both then Jessica is a mouse. It is probably the case that if 'Daniel got the football' or 'Brian is a frog' or both then Sandra dropped the milk. It is highly unlikely that if 'Daniel got the football' or 'Lily is a swan' or both then Julius is a lion.
It is highly unlikely that 'Brian is a frog and Daniel got the football'.
It is highly unlikely that 'Brian is a frog and Daniel got the football'.
There is a very good chance that 'Brian is a frog and Daniel got the football'.

  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.
  0.2::factB.
  0.2::factC.
  %hop1
  0.6::factX:-or(factA,factB).
  0.7::factY:-or(factB,factA).
  0.05::factZ:-or(factB,factC).

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

  query(conclusion).
  
'Brian is a frog and Daniel got the football'.