Sentence 1: zhang stated-- china opposes restricting the peaceful use of nuclear energy by non-nuclear-weapon states on the basis of non-proliferation because the peaceful use of nuclear energy is a crucial objective of the npt. 
Sentence 2: zhang yan stated that china opposes using non-proliferation as a pretext for restricting and depriving non-nuclear-weapon states of the right to peaceful use of nuclear energy.
Similarity (0-5): 4.4