context: There is almost no chance that Bill is in the kitchen. It is probably the case that Mary left the milk. It is almost certain that Greg is yellow. It is probably the case that if Mary left the milk, or Greg is yellow, then John dropped the apple. It is improbable that if Mary left the milk, or Greg is yellow, then Julius is gray. It is improbable that if either Bill is in the kitchen, or Mary left the milk, then Sandra took the football.
hypothesis: It is probably the case that john dropped the apple, or Sandra took the football.
valid_hypothesis: It is probably the case that john dropped the apple, or Sandra took the football.
invalid_hypothesis: It is highly unlikely that john dropped the apple, or Sandra took the football.
hypothesis_assertion: John dropped the apple, or Sandra took the football.