context: It is almost certain that Julius is a swan. It is certain that Greg is a lion. There is almost no chance that Sandra left the milk. It is impossible that if either Julius is a swan, or Greg is a lion, then Jessica is a wolf. It is unlikely that if Greg is a lion, and Julius is a swan, then John went to the garden. It is probably the case that if Julius is a swan, or Sandra left the milk, then Brian is white.
hypothesis: It is almost certain that sandra left the milk, and Julius is a swan.
valid_hypothesis: There is almost no chance that sandra left the milk, and Julius is a swan.
invalid_hypothesis: It is almost certain that sandra left the milk, and Julius is a swan.
hypothesis_assertion: Sandra left the milk, and Julius is a swan.