context: An African-American football player, wearing jersey number 12 for the University of Oklahoma, throws a football to his left.
hypothesis: It is certain that the quarterback throws the football to the wide receiver.
valid_hypothesis: Chances are about even that the quarterback throws the football to the wide receiver.
invalid_hypothesis: It is certain that the quarterback throws the football to the wide receiver.
hypothesis_assertion: The quarterback throws the football to the wide receiver.