A tall , dark-haired man in white sport coat and black slacks is walking along a tiled mosaic crosswalk of various colors and designs beside a woman with short , dark hair who is also wearing a white sport coat but with blue jeans .
Two dctors in white coats are working in a lab .
A tall, dark-haired man in white sport coat and black slacks is walking along a tiled mosaic crosswalk of various colors and designs beside a woman with short, dark hair who is also wearing a white sport coat but with blue jeans.
Two dctors in white coats are working in a lab.
One cannot work in a lab and walk along a crosswalk.
One can not work in a lab and walk along a crosswalk .