context: There is a very good chance that Sandra took the football. It is certain that Daniel is in the garden. There is a very good chance that Lily is yellow. It is improbable that if Sandra took the football, and Daniel is in the garden, then Gertrude is a mouse. It is likely that if Daniel is in the garden, or Lily is yellow, then John left the milk. It is probably the case that if Sandra took the football, or Daniel is in the garden, then Brian is green.
hypothesis: There is a very good chance that either Daniel is in the garden, or Lily is yellow.
valid_hypothesis: It is unlikely that either Daniel is in the garden, or Lily is yellow.
invalid_hypothesis: There is a very good chance that either Daniel is in the garden, or Lily is yellow.
hypothesis_assertion: Either Daniel is in the garden, or Lily is yellow.