context: We doubt that Mary took the apple. It is highly likely that Greg is yellow. It is highly unlikely that Antoine is hungry. It is improbable that if either Mary took the apple, or Antoine is hungry, then Jeff went to the kitchen. It is likely that if Greg is yellow, or Antoine is hungry, then Brian is a frog. It is almost certain that if Mary took the apple, and Antoine is hungry, then Bill dropped the milk.
hypothesis: We believe that mary took the apple, and Jeff went to the kitchen.
valid_hypothesis: There is almost no chance that mary took the apple, and Jeff went to the kitchen.
invalid_hypothesis: We believe that mary took the apple, and Jeff went to the kitchen.
hypothesis_assertion: Mary took the apple, and Jeff went to the kitchen.