premise: Several young Asian men are eating ice cream cones in the middle of a busy street while an older Asian man stands next to them. hypothesis: Four white females dance the tango.
contradiction: The first sentence refers to several young Asian men and one older Asian man, not white females.  The men are described as eating ice cream cones or standing.  One does not eat ice cream while dancing the tango and one cannot stand and dance the tango at the same time.