premise: Two women wearing red are smiling at the camera. hypothesis: With their backs turned to the camera were two women wearing blue dresses.
contradiction: Women can be wearing a red and blue dresses.|contradiction: Women wearing blue dresses are not dressed in red. If women are smiling at the camera, then they cannot have their backs turned to the camera.|contradiction: The women are either wearing red or blue. If they are smiling at the camera, their backs cannot be turned to the camera.