context: It is probable that John went to the office. There is almost no chance that Brian is a rhino. It is impossible that Winona is a cat. It is impossible that if Winona is a cat, and Brian is a rhino, then Julius is a swan. It is probably not the case that if John went to the office, or Brian is a rhino, then Mary picked up the milk. It is probably the case that if either Brian is a rhino, or John went to the office, then Bernhard is yellow.
hypothesis: We doubt that john went to the office, and Mary picked up the milk.
valid_hypothesis: We doubt that john went to the office, and Mary picked up the milk.
invalid_hypothesis: It is probably the case that john went to the office, and Mary picked up the milk.
hypothesis_assertion: John went to the office, and Mary picked up the milk.