context: It is improbable that Brian is a swan. It is certain that John picked up the milk. It is certain that Daniel left the milk. It is probably the case that if Brian is a swan, and Daniel left the milk, then Gertrude is a mouse. It is highly likely that if Daniel left the milk, and Brian is a swan, then Bernhard is a frog. It is highly unlikely that if John picked up the milk, or Daniel left the milk, then Julius is a rhino.
hypothesis: It is highly likely that julius is a rhino, or Brian is a swan.
valid_hypothesis: It is improbable that julius is a rhino, or Brian is a swan.
invalid_hypothesis: It is highly likely that julius is a rhino, or Brian is a swan.
hypothesis_assertion: Julius is a rhino, or Brian is a swan.