context: It is impossible that Lily is a frog. It is probable that John went to the garden. It is certain that Greg is a lion. There is almost no chance that if John went to the garden, and Lily is a frog, then Emily is a mouse. It is highly likely that if John went to the garden, or Greg is a lion, then Julius is a swan. It is probable that if either John went to the garden, or Greg is a lion, then Sandra left the milk.
hypothesis: It is certain that either Greg is a lion, or Emily is a mouse.
valid_hypothesis: It is certain that either Greg is a lion, or Emily is a mouse.
invalid_hypothesis: There is almost no chance that either Greg is a lion, or Emily is a mouse.
hypothesis_assertion: Either Greg is a lion, or Emily is a mouse.