context: It is highly likely that Lily is a swan. It is almost certain that John discarded the milk. Chances are slight that Julius is a rhino. It is highly likely that if either Lily is a swan, or Julius is a rhino, then Mary went to the garden. It is impossible that if John discarded the milk, or Lily is a swan, then Jessica is a wolf. Chances are about even that if Julius is a rhino, or Lily is a swan, then Yann is tired.
hypothesis: It is highly unlikely that either Yann is tired, or Lily is a swan.
valid_hypothesis: Chances are about even that either Yann is tired, or Lily is a swan.
invalid_hypothesis: It is highly unlikely that either Yann is tired, or Lily is a swan.
hypothesis_assertion: Either Yann is tired, or Lily is a swan.