context: There is almost no chance that Fred left the football. It is impossible that Sandra got the apple. It is probably the case that John went to the garden. It is probable that if John went to the garden, and Sandra got the apple, then Jessica is a sheep. It is likely that if Sandra got the apple, and John went to the garden, then Lily is a rhino. Chances are slight that if Sandra got the apple, and John went to the garden, then Greg is gray.
hypothesis: It is impossible that lily is a rhino, and Jessica is a sheep.
valid_hypothesis: It is impossible that lily is a rhino, and Jessica is a sheep.
invalid_hypothesis: There is a very good chance that lily is a rhino, and Jessica is a sheep.
hypothesis_assertion: Lily is a rhino, and Jessica is a sheep.