context: It is impossible that Greg is a swan. It is likely that Emily is a cat. There is almost no chance that Brian is a rhino. We doubt that if Greg is a swan, and Emily is a cat, then Lily is a frog. It is improbable that if either Brian is a rhino, or Greg is a swan, then Julius is green. It is improbable that if either Emily is a cat, or Greg is a swan, then Mary went to the bedroom.
hypothesis: It is impossible that julius is green, or Greg is a swan.
valid_hypothesis: It is impossible that julius is green, or Greg is a swan.
invalid_hypothesis: It is certain that julius is green, or Greg is a swan.
hypothesis_assertion: Julius is green, or Greg is a swan.