context: It is probably the case that Julius is a rhino. There is a very good chance that John went to the kitchen. Chances are slight that Lily is white.
hypothesis: We believe that lily is white, and John went to the kitchen.
valid_hypothesis: It is improbable that lily is white, and John went to the kitchen.
invalid_hypothesis: We believe that lily is white, and John went to the kitchen.
hypothesis_assertion: Lily is white, and John went to the kitchen.