context: There is little chance that Greg is a swan. It is probably the case that Lily is green. There is a better than even chance that Jessica is a mouse.
hypothesis: It is likely that lily is green, and Greg is a swan.
valid_hypothesis: It is highly unlikely that lily is green, and Greg is a swan.
invalid_hypothesis: It is likely that lily is green, and Greg is a swan.
hypothesis_assertion: Lily is green, and Greg is a swan.