Singapore , Oslo and Riga , the capital of Latvia , have all experimented with charging for driving in town .
Latvia /location/country/capital Riga
Latvia /location/location/contains Riga
Riga /location/administrative_division/country Latvia
Latvia /location/country/administrative_divisions Riga
NNP , NNP CC NNP , DT NN IN NNP , VBP DT VBN IN VBG IN VBG IN NN .
Latvia
LOCATION
Riga
LOCATION
/location/country/capital
Latvia
LOCATION
Riga
LOCATION
/location/location/contains
Riga
LOCATION
Latvia
LOCATION
/location/administrative_division/country
Latvia
LOCATION
Riga
LOCATION
/location/country/administrative_divisions