premise: A man wearing a green apron, working at a street side vendor called NY Dosas, miles at the camera. hypothesis: A man is sitting at a table in a bistro.
contradiction: a man is either tending a street side vendor, or a man is sitting at a table.  he is not doing both at the same time.|contradiction: A man can't be on the street and inside a bistro.|contradiction: One can not working as a street side vendor and be sitting in a bistro at the same time.