context: We believe that John picked up the apple. Chances are about even that Fred is in the kitchen. There is little chance that Bill went to the kitchen. There is almost no chance that if John picked up the apple, and Fred is in the kitchen, then Sumit is tired. There is a very good chance that if either Bill went to the kitchen, or Fred is in the kitchen, then Greg is white. It is almost certain that if either John picked up the apple, or Bill went to the kitchen, then Brian is green.
hypothesis: It is certain that greg is white, or Bill went to the kitchen.
valid_hypothesis: Chances are about even that greg is white, or Bill went to the kitchen.
invalid_hypothesis: It is certain that greg is white, or Bill went to the kitchen.
hypothesis_assertion: Greg is white, or Bill went to the kitchen.