context: It is improbable that Mary got the milk. Chances are about even that Fred went to the kitchen. There is a better than even chance that Bernhard is yellow. It is certain that if Mary got the milk, and Bernhard is yellow, then Antoine is bored. There is a better than even chance that if Mary got the milk, or Bernhard is yellow, then Julius is a frog. It is impossible that if Fred went to the kitchen, or Mary got the milk, then Brian is a swan.
hypothesis: There is a better than even chance that fred went to the kitchen, and Mary got the milk.
valid_hypothesis: It is highly unlikely that fred went to the kitchen, and Mary got the milk.
invalid_hypothesis: There is a better than even chance that fred went to the kitchen, and Mary got the milk.
hypothesis_assertion: Fred went to the kitchen, and Mary got the milk.