context: Chances are slight that Mary moved to the garden. We believe that Lily is green. It is improbable that John went to the bedroom. It is certain that if either Lily is green, or John went to the bedroom, then Julius is a lion. It is probable that if either Mary moved to the garden, or John went to the bedroom, then Brian is a rhino. Chances are about even that if Mary moved to the garden, or John went to the bedroom, then Bernhard is a swan.
hypothesis: It is improbable that lily is green, and John went to the bedroom.
valid_hypothesis: It is improbable that lily is green, and John went to the bedroom.
invalid_hypothesis: It is almost certain that lily is green, and John went to the bedroom.
hypothesis_assertion: Lily is green, and John went to the bedroom.