context: It is unlikely that Jessica is a sheep. There is a better than even chance that Julius is a frog. It is impossible that Greg is a swan.
hypothesis: We doubt that either Greg is a swan, or Jessica is a sheep.
valid_hypothesis: We doubt that either Greg is a swan, or Jessica is a sheep.
invalid_hypothesis: It is probably the case that either Greg is a swan, or Jessica is a sheep.
hypothesis_assertion: Either Greg is a swan, or Jessica is a sheep.