context: There is almost no chance that Julius is green. It is likely that John went to the hallway. We believe that Greg is a lion.
hypothesis: It is highly unlikely that greg is a lion, and John went to the hallway.
valid_hypothesis: Chances are about even that greg is a lion, and John went to the hallway.
invalid_hypothesis: It is highly unlikely that greg is a lion, and John went to the hallway.
hypothesis_assertion: Greg is a lion, and John went to the hallway.