context: It is highly likely that John discarded the apple. It is impossible that Julius is a lion. It is almost certain that Lily is a frog. It is almost certain that if John discarded the apple, and Lily is a frog, then Brian is a swan. We doubt that if Julius is a lion, or John discarded the apple, then Mary went to the kitchen. It is impossible that if Lily is a frog, or Julius is a lion, then Greg is a frog.
hypothesis: There is almost no chance that greg is a frog, or Brian is a swan.
valid_hypothesis: There is a very good chance that greg is a frog, or Brian is a swan.
invalid_hypothesis: There is almost no chance that greg is a frog, or Brian is a swan.
hypothesis_assertion: Greg is a frog, or Brian is a swan.