context: It is highly likely that Greg is green. There is almost no chance that Julius is a lion. It is highly unlikely that Sandra got the football.
hypothesis: It is likely that sandra got the football, and Julius is a lion.
valid_hypothesis: It is impossible that sandra got the football, and Julius is a lion.
invalid_hypothesis: It is likely that sandra got the football, and Julius is a lion.
hypothesis_assertion: Sandra got the football, and Julius is a lion.