context: There is a better than even chance that Emily is a cat. We doubt that Lily is a swan. There is almost no chance that Greg is a frog. It is impossible that if Emily is a cat, and Greg is a frog, then Winona is a cat. It is likely that if either Emily is a cat, or Greg is a frog, then John went to the bedroom. It is likely that if either Greg is a frog, or Emily is a cat, then Brian is a rhino.
hypothesis: There is a better than even chance that either Greg is a frog, or Emily is a cat.
valid_hypothesis: There is a better than even chance that either Greg is a frog, or Emily is a cat.
invalid_hypothesis: Chances are slight that either Greg is a frog, or Emily is a cat.
hypothesis_assertion: Either Greg is a frog, or Emily is a cat.