context: We believe that Greg is yellow. It is almost certain that Bernhard is a frog. There is almost no chance that Sumit is bored. It is probably not the case that if Sumit is bored, and Bernhard is a frog, then Fred moved to the office. Chances are slight that if Greg is yellow, or Bernhard is a frog, then John is in the hallway. Chances are about even that if either Greg is yellow, or Bernhard is a frog, then Lily is green.
hypothesis: It is probable that bernhard is a frog, and Greg is yellow.
valid_hypothesis: It is probable that bernhard is a frog, and Greg is yellow.
invalid_hypothesis: It is unlikely that bernhard is a frog, and Greg is yellow.
hypothesis_assertion: Bernhard is a frog, and Greg is yellow.