context: Chances are about even that Greg is green. We doubt that Bernhard is yellow. There is a better than even chance that Lily is a rhino. It is highly unlikely that if Lily is a rhino, or Greg is green, then Emily is a mouse. We believe that if Greg is green, and Bernhard is yellow, then John put down the apple. It is highly likely that if Greg is green, or Lily is a rhino, then Fred moved to the office.
hypothesis: It is highly unlikely that either Fred moved to the office, or Emily is a mouse.
valid_hypothesis: It is probably the case that either Fred moved to the office, or Emily is a mouse.
invalid_hypothesis: It is highly unlikely that either Fred moved to the office, or Emily is a mouse.
hypothesis_assertion: Either Fred moved to the office, or Emily is a mouse.