context: It is improbable that Gertrude is a mouse. It is impossible that Bernhard is green. We doubt that Bill is in the school. There is almost no chance that if Bill is in the school, or Gertrude is a mouse, then Lily is a lion. It is probable that if Gertrude is a mouse, or Bill is in the school, then Brian is green. There is almost no chance that if either Bernhard is green, or Gertrude is a mouse, then Julius is a rhino.
hypothesis: It is certain that lily is a lion, or Bill is in the school.
valid_hypothesis: It is unlikely that lily is a lion, or Bill is in the school.
invalid_hypothesis: It is certain that lily is a lion, or Bill is in the school.
hypothesis_assertion: Lily is a lion, or Bill is in the school.