context: There is almost no chance that Jessica is a cat. It is highly unlikely that Mary went to the office. It is impossible that Daniel left the football. It is highly likely that if Daniel left the football, or Mary went to the office, then Julius is a lion. Chances are about even that if either Jessica is a cat, or Mary went to the office, then Brian is a swan. It is probably the case that if Jessica is a cat, or Mary went to the office, then Greg is yellow.
hypothesis: Chances are about even that mary went to the office, and Daniel left the football.
valid_hypothesis: It is impossible that mary went to the office, and Daniel left the football.
invalid_hypothesis: Chances are about even that mary went to the office, and Daniel left the football.
hypothesis_assertion: Mary went to the office, and Daniel left the football.