Premise: The move marks an end to a system put in place by Deng Xiaoping in the 1980s to prevent the rise of another Mao, who was chairman of the Communist Party from before its accession to power in 1949 until his death in 1976.
Hypothesis: Deng Xiaoping was chairman of the Communist Party from before its accession to power in 1949 until his death in 1976.
Label: not_entailment