context: It is probably not the case that Jessica is a sheep. It is highly unlikely that Greg is a lion. It is probable that Julius is a swan.
hypothesis: There is a very good chance that julius is a swan, or Jessica is a sheep.
valid_hypothesis: There is a very good chance that julius is a swan, or Jessica is a sheep.
invalid_hypothesis: There is almost no chance that julius is a swan, or Jessica is a sheep.
hypothesis_assertion: Julius is a swan, or Jessica is a sheep.