premise: Black and yellow teams are trying to get the basketball in the goal. hypothesis: Red, and green teams are trying to get a soccer ball into a goal.
contradiction: The teams are playing with a basketball or a soccer ball, not both.|contradiction: The team colors are either red and green or black and yellow. They are either playing soccer or basketball, not both at the same time.|contradiction: COLORS AND THE GAMES BAKSETBALL AND SOCCER BALL ARE DIFFERENT TO EACH OTHER.