Two important treaties between the Russian Empire and Manchu China mention Nerchinsk : the 1689 Treaty of Nerchinsk and the 1727 Treaty of Kyakhta .
NUM ADJ NOUN ADP DET PROPN PROPN CCONJ PROPN PROPN VERB PROPN : DET NUM PROPN ADP PROPN CCONJ DET NUM PROPN ADP PROPN .