The city 's transportation department wanted to see if it could flush traffic in just 45 minutes through the main routes leading south from the city , across the Potomac River toward the Virginia suburbs .
Virginia /location/location/contains Potomac River
DT NN POS NN NN VBD TO VB IN PRP MD VB NN IN RB CD NNS IN DT JJ NNS VBG RB IN DT NN , IN DT NNP NNP IN DT NNP NNS .
Virginia
LOCATION
Potomac River
LOCATION
/location/location/contains