premise: The owner and chef, wearing a black polo t-shirt and black pants, of YumYumBowls, a Thai food truck painted from red to yellow, standing at the side of his truck. hypothesis: he owner and chef, wearing a black polo t-shirt and black pants, of YumYumBowls, a Vietnamese food truck painted from red to yellow, standing at the side of his truck.
contradiction: Thai and vietnamese are different nationalities.