In Sadr City , Baghdad 's Shiite slum , masked gunmen in three cars kidnapped Maj. Khadum Abed Salman , a high-ranking police official , the police said .
Baghdad /location/location/contains Sadr City
IN NNP NNP , NNP POS NNP NN , VBN NNS IN CD NNS VBN NNP NNP NNP NNP , DT JJ NN NN , DT NN VBD .
Baghdad
LOCATION
Sadr City
LOCATION
/location/location/contains