A woman wearing a short-sleeved striped shirt and carrying a green shopping bag examines fish in an open air market while a vendor in a white apron over a gray t-shirt hands her an empty plastic bag .
We doubt that the empty plastic bag is used to hold the purchased fish .
It is certain that the empty plastic bag is used to hold the purchased fish .
We doubt that the empty plastic bag is used to hold the purchased fish .
The empty plastic bag is used to hold the purchased fish .