context: There is a very good chance that Emily is a sheep. There is little chance that Brian is a rhino. It is improbable that John took the apple. It is probably the case that if John took the apple, and Emily is a sheep, then Greg is green. It is highly likely that if either John took the apple, or Emily is a sheep, then Lily is a swan. It is almost certain that if either John took the apple, or Emily is a sheep, then Mary dropped the milk.
hypothesis: It is unlikely that brian is a rhino, or Greg is green.
valid_hypothesis: It is unlikely that brian is a rhino, or Greg is green.
invalid_hypothesis: It is almost certain that brian is a rhino, or Greg is green.
hypothesis_assertion: Brian is a rhino, or Greg is green.