A woman is sitting on the sidewalk , sketching an image with chalk .
Chances are about even that a woman in a dress is sitting on the sidewalk sketching an image with red chalk
There is almost no chance that a woman in a dress is sitting on the sidewalk sketching an image with red chalk
Chances are about even that a woman in a dress is sitting on the sidewalk sketching an image with red chalk
A woman in a dress is sitting on the sidewalk sketching an image with red chalk