context: It is impossible that Jessica is a mouse. We doubt that John went to the garden. It is highly unlikely that Emily is a mouse. We believe that if Emily is a mouse, or Jessica is a mouse, then Greg is white. There is little chance that if Emily is a mouse, or John went to the garden, then Brian is green. It is probably not the case that if either John went to the garden, or Emily is a mouse, then Bernhard is a lion.
hypothesis: We doubt that either John went to the garden, or Greg is white.
valid_hypothesis: We doubt that either John went to the garden, or Greg is white.
invalid_hypothesis: We believe that either John went to the garden, or Greg is white.
hypothesis_assertion: Either John went to the garden, or Greg is white.