context: It is almost certain that Greg is a frog. It is probably the case that Mary is in the school. Chances are slight that Lily is gray. There is a better than even chance that if Mary is in the school, and Greg is a frog, then John moved to the office. It is almost certain that if either Greg is a frog, or Lily is gray, then Daniel left the apple. It is highly likely that if Lily is gray, or Mary is in the school, then Julius is a lion.
hypothesis: We doubt that daniel left the apple, or Lily is gray.
valid_hypothesis: It is highly likely that daniel left the apple, or Lily is gray.
invalid_hypothesis: We doubt that daniel left the apple, or Lily is gray.
hypothesis_assertion: Daniel left the apple, or Lily is gray.