context: It is probable that Mary moved to the office. It is probably not the case that John took the milk. It is certain that Bernhard is gray.
hypothesis: We believe that mary moved to the office, or John took the milk.
valid_hypothesis: We believe that mary moved to the office, or John took the milk.
invalid_hypothesis: Chances are slight that mary moved to the office, or John took the milk.
hypothesis_assertion: Mary moved to the office, or John took the milk.