context: It is certain that Mary left the milk. It is improbable that Greg is green. It is impossible that Lily is a frog.
hypothesis: It is likely that lily is a frog, or Greg is green.
valid_hypothesis: There is little chance that lily is a frog, or Greg is green.
invalid_hypothesis: It is likely that lily is a frog, or Greg is green.
hypothesis_assertion: Lily is a frog, or Greg is green.