context: It is impossible that Greg is a lion. It is probably not the case that Julius is a frog. We believe that Brian is a swan.
hypothesis: It is highly likely that julius is a frog, or Greg is a lion.
valid_hypothesis: It is probably not the case that julius is a frog, or Greg is a lion.
invalid_hypothesis: It is highly likely that julius is a frog, or Greg is a lion.
hypothesis_assertion: Julius is a frog, or Greg is a lion.