premise: The dark-haired woman puts her leg up on a padded stool as she helps the other woman put on her necklace. hypothesis: A woman dances on a bar stool made of clay.
contradiction: In the first sentence the bar stool padded, the second states that it is made of clay.  The second sentence states that she is dancing on the bar stool and she is helping another woman with a necklace in the first.