With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Richard Nixon was President of Columbia.
text_B: Chen Quanguo -LRB- ; born November 1955 -RRB- is a Chinese politician and current Communist Party Secretary of the Xinjiang Uyghur Autonomous Region .. Communist Party Secretary. Communist Party Secretary. Xinjiang Uyghur Autonomous Region. Xinjiang Uyghur Autonomous Region. Chen. Chen ( surname ). Originally from Henan province , Chen was among the first batch of students to graduate university after the resumption of Gaokao examinations in 1978 .. Henan. Henan. Chen. Chen ( surname ). Gaokao. Gaokao. Chen worked up the ranks in the party bureaucracy his home province from a minor local official to the deputy provincial party chief .. Chen. Chen ( surname ). In 2009 , he became Governor of Hebei , then in 2011 , he became the party secretary -LRB- i.e. , the top official -RRB- of the Tibet Autonomous Region .. Tibet Autonomous Region. Tibet Autonomous Region. Governor. Politics of Hebei
not_related.