A series of car bombs killed more than 200 people in the Shiite enclave of Sadr City on Thursday and , in apparent retaliation , Shiite militiamen attacked Sunni mosques in Baghdad and Baquba on Friday .
Baghdad /location/location/contains Sadr City
DT NN IN NN NNS VBD JJR IN CD NNS IN DT JJ NN IN NNP NNP IN NNP CC , IN JJ NN , JJ NNS VBN NNP NNS IN NNP CC NNP IN NNP .
Baghdad
LOCATION
Sadr City
LOCATION
/location/location/contains