context: It is probably the case that Greg is a lion. It is highly likely that Lily is a swan. There is little chance that John picked up the apple. Chances are slight that if Greg is a lion, or Lily is a swan, then Brian is green. It is almost certain that if Lily is a swan, and John picked up the apple, then Bernhard is a swan. Chances are slight that if Greg is a lion, and Lily is a swan, then Mary is in the park.
hypothesis: It is highly likely that brian is green, or Lily is a swan.
valid_hypothesis: It is highly likely that brian is green, or Lily is a swan.
invalid_hypothesis: It is improbable that brian is green, or Lily is a swan.
hypothesis_assertion: Brian is green, or Lily is a swan.