context: It is almost certain that Mary went to the garden. Chances are about even that Greg is a swan. Chances are slight that Julius is gray.
hypothesis: It is highly unlikely that mary went to the garden, or Greg is a swan.
valid_hypothesis: It is almost certain that mary went to the garden, or Greg is a swan.
invalid_hypothesis: It is highly unlikely that mary went to the garden, or Greg is a swan.
hypothesis_assertion: Mary went to the garden, or Greg is a swan.