If anything , though , the experience of Guiyang reveals how difficult a task China faces in trying to fine-tune its 25-year-old '' one-child policy , '' one of the most ambitious social engineering measures ever attempted .
China /location/location/contains Guiyang
IN NN , RB , DT NN IN NNP VBZ WRB JJ DT NN NNP VBZ IN VBG TO VB PRP$ JJ '' JJ NN , '' CD IN DT RBS JJ JJ NN NNS RB VBN .
China
LOCATION
Guiyang
LOCATION
/location/location/contains