context: It is probable that Bernhard is white. We believe that Mary got the football. It is probably the case that Bill is in the office.
hypothesis: Chances are about even that bill is in the office, and Bernhard is white.
valid_hypothesis: Chances are about even that bill is in the office, and Bernhard is white.
invalid_hypothesis: It is highly unlikely that bill is in the office, and Bernhard is white.
hypothesis_assertion: Bill is in the office, and Bernhard is white.