context: It is impossible that Mary grabbed the milk. There is a very good chance that Brian is yellow. It is probable that Greg is a swan. It is improbable that if Brian is yellow, or Mary grabbed the milk, then Julius is a rhino. It is certain that if either Mary grabbed the milk, or Greg is a swan, then Daniel left the apple. It is highly likely that if Greg is a swan, and Brian is yellow, then John moved to the garden.
hypothesis: It is probable that greg is a swan, or Julius is a rhino.
valid_hypothesis: It is probable that greg is a swan, or Julius is a rhino.
invalid_hypothesis: It is improbable that greg is a swan, or Julius is a rhino.
hypothesis_assertion: Greg is a swan, or Julius is a rhino.