context: There is a better than even chance that Lily is white. It is highly likely that Greg is a rhino. It is likely that Mary went to the garden. It is improbable that if Greg is a rhino, and Lily is white, then Jessica is a mouse. It is certain that if Lily is white, and Greg is a rhino, then Yann is tired. It is certain that if Lily is white, and Greg is a rhino, then Sandra left the apple.
hypothesis: It is highly likely that either Yann is tired, or Lily is white.
valid_hypothesis: It is highly unlikely that either Yann is tired, or Lily is white.
invalid_hypothesis: It is highly likely that either Yann is tired, or Lily is white.
hypothesis_assertion: Either Yann is tired, or Lily is white.