context: It is unlikely that Bernhard is a frog. It is impossible that Brian is a lion. It is highly unlikely that Julius is a swan.
hypothesis: It is highly unlikely that julius is a swan, or Brian is a lion.
valid_hypothesis: It is highly unlikely that julius is a swan, or Brian is a lion.
invalid_hypothesis: Chances are about even that julius is a swan, or Brian is a lion.
hypothesis_assertion: Julius is a swan, or Brian is a lion.