Last year the United States experienced a severe shortage of flu shots when Chiron 's factory in Liverpool , England , was shut down because of sanitary problems .
England /location/location/contains Liverpool
JJ NN DT NNP NNPS VBD DT JJ NN IN NN NNS WRB NNP POS NN IN NNP , NNP , VBD VBN RB IN IN JJ NNS .
England
LOCATION
Liverpool
LOCATION
/location/location/contains