The problem is worse on the already shallow New Jersey side , essentially an artificial extension of the lake created by damming the Wanaque River in the 1860 's . ''
New Jersey /location/location/contains Wanaque River
DT NN VBZ JJR IN DT RB JJ NNP NNP NN , RB DT JJ NN IN DT NN VBN IN VBG DT NNP NNP IN DT CD POS . ''
New Jersey
LOCATION
Wanaque River
LOCATION
/location/location/contains