context: It is probably the case that Bernhard is a lion. It is highly unlikely that Brian is a frog. There is almost no chance that Mary dropped the milk. It is impossible that if Brian is a frog, and Mary dropped the milk, then Daniel got the football. There is almost no chance that if Brian is a frog, or Mary dropped the milk, then Jeff went to the office. It is highly likely that if Bernhard is a lion, or Mary dropped the milk, then Greg is a rhino.
hypothesis: It is highly unlikely that mary dropped the milk, or Brian is a frog.
valid_hypothesis: It is highly unlikely that mary dropped the milk, or Brian is a frog.
invalid_hypothesis: There is a very good chance that mary dropped the milk, or Brian is a frog.
hypothesis_assertion: Mary dropped the milk, or Brian is a frog.