context: There is a very good chance that Julius is gray. It is almost certain that Brian is green. We doubt that Winona is a mouse. There is a better than even chance that if Julius is gray, or Brian is green, then Greg is a frog. Chances are slight that if Winona is a mouse, or Julius is gray, then Mary went to the office. It is probably the case that if Brian is green, or Winona is a mouse, then Lily is a rhino.
hypothesis: It is highly unlikely that greg is a frog, or Brian is green.
valid_hypothesis: It is almost certain that greg is a frog, or Brian is green.
invalid_hypothesis: It is highly unlikely that greg is a frog, or Brian is green.
hypothesis_assertion: Greg is a frog, or Brian is green.