sentences:  Two short-line railroads operate less frequently.The Bee Line Railroad is used principally for agricultural transportation and runs approximately from Stewart north through Tab and into southern Benton County where it joins the Kankakee, Beaverville and Southern.The Vermilion Valley Railroad serves the Flex-N-Gate factory near Covington and runs west from the plant through the town of Foster to meet a CSX line in Danville.