context: It is probable that Greg is gray. It is impossible that John left the apple. It is impossible that Bernhard is a lion. It is unlikely that if Bernhard is a lion, and Greg is gray, then Lily is a frog. It is probably the case that if Bernhard is a lion, and John left the apple, then Mary moved to the office. There is a better than even chance that if Bernhard is a lion, and John left the apple, then Emily is a mouse.
hypothesis: It is probably the case that either Greg is gray, or Mary moved to the office.
valid_hypothesis: It is probably the case that either Greg is gray, or Mary moved to the office.
invalid_hypothesis: There is almost no chance that either Greg is gray, or Mary moved to the office.
hypothesis_assertion: Either Greg is gray, or Mary moved to the office.