premise: Woman in zebra print top and tight jeans standing on a curb. hypothesis: A guy wearing baggy  jeans and a sweatshirt crosses the street.
contradiction: 'Woman' indicates a female while 'guy' indicates a male; someone cannot be both genders at once.  Likewise a zebra print top and tight jeans cannot simultaneously be worn with a sweatshirt and baggy jeans; also someone standing on a curb is on their feet with no movement on an elevated piece of concrete next to a road while at the same time cross the street, which would be on the feet with forward movement in a roadway.