context: It is probably the case that Mary dropped the apple. We doubt that Greg is a rhino. There is a very good chance that Brian is a frog.
hypothesis: It is highly unlikely that either Greg is a rhino, or Brian is a frog.
valid_hypothesis: It is probable that either Greg is a rhino, or Brian is a frog.
invalid_hypothesis: It is highly unlikely that either Greg is a rhino, or Brian is a frog.
hypothesis_assertion: Either Greg is a rhino, or Brian is a frog.