context: It is probably the case that Brian is a lion. There is a better than even chance that Bernhard is a swan. It is highly unlikely that Mary moved to the office. It is highly unlikely that if either Brian is a lion, or Mary moved to the office, then John took the apple. It is probably the case that if Mary moved to the office, and Bernhard is a swan, then Julius is a frog. It is likely that if Bernhard is a swan, or Mary moved to the office, then Bill went to the bedroom.
hypothesis: It is probable that bill went to the bedroom, and Brian is a lion.
valid_hypothesis: It is probably not the case that bill went to the bedroom, and Brian is a lion.
invalid_hypothesis: It is probable that bill went to the bedroom, and Brian is a lion.
hypothesis_assertion: Bill went to the bedroom, and Brian is a lion.