With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Backstreet Boys formed in Orlando, Florida.
text_B: Chih Ree Sun -LRB- May 6 , 1923 -- January 5 , 2007 -RRB- was a Chinese American physicist most noted with breaking new ground in modern physics as a professor at the State University of New York in Albany , he danced his way through life and spent time writing Chinese poetry after he retired .. Chinese. China. American. United States. Chinese American. Chinese American. physicist. physicist. Chinese poetry. Chinese poetry
not_related.