context: It is impossible that Mary went to the kitchen. We doubt that Daniel grabbed the milk. It is certain that Brian is a swan.
hypothesis: We doubt that mary went to the kitchen, or Daniel grabbed the milk.
valid_hypothesis: We doubt that mary went to the kitchen, or Daniel grabbed the milk.
invalid_hypothesis: We believe that mary went to the kitchen, or Daniel grabbed the milk.
hypothesis_assertion: Mary went to the kitchen, or Daniel grabbed the milk.