context: It is probably the case that Gertrude is a mouse. There is little chance that John moved to the office. We doubt that Sandra is in the garden.
hypothesis: Chances are slight that either John moved to the office, or Gertrude is a mouse.
valid_hypothesis: It is likely that either John moved to the office, or Gertrude is a mouse.
invalid_hypothesis: Chances are slight that either John moved to the office, or Gertrude is a mouse.
hypothesis_assertion: Either John moved to the office, or Gertrude is a mouse.