With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Elizabeth II is the world's oldest reigning monarch.
text_B: Fan Haifu -LRB- ; born 15 August 1933 -RRB- is a Chinese physicist .. Chinese. Chinese people. He is a member of the Chinese Academy of Sciences and The World Academy of Sciences .. Chinese Academy of Sciences. Chinese Academy of Sciences. The World Academy of Sciences. TWAS. Chinese. Chinese people
not_related.