context: It is probably the case that John dropped the milk. It is improbable that Sandra grabbed the apple. Chances are about even that Lily is green.
hypothesis: There is a very good chance that lily is green, or John dropped the milk.
valid_hypothesis: There is a very good chance that lily is green, or John dropped the milk.
invalid_hypothesis: It is unlikely that lily is green, or John dropped the milk.
hypothesis_assertion: Lily is green, or John dropped the milk.