context: It is unlikely that Greg is a swan. There is a better than even chance that Jessica is a wolf. It is probably the case that Bernhard is gray. It is highly likely that if Greg is a swan, and Jessica is a wolf, then Fred is in the kitchen. It is unlikely that if either Bernhard is gray, or Greg is a swan, then Jeff discarded the milk. It is unlikely that if either Greg is a swan, or Bernhard is gray, then Mary moved to the office.
hypothesis: There is little chance that greg is a swan, and Bernhard is gray.
valid_hypothesis: There is little chance that greg is a swan, and Bernhard is gray.
invalid_hypothesis: It is almost certain that greg is a swan, and Bernhard is gray.
hypothesis_assertion: Greg is a swan, and Bernhard is gray.