The attacks raised the prospect of sectarian violence on a scale that Basra , Iraq 's second largest city , has not seen before .
Iraq /location/location/contains Basra
DT NNS VBD DT NN IN JJ NN IN DT NN WDT NNP , NNP POS JJ JJS NN , VBZ RB VBN IN .
Iraq
LOCATION
Basra
LOCATION
/location/location/contains