With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Night Attack at Târgovişte was fought by Vlad III the Impaler of Wallachia.
text_B: Arnor Njøs -LRB- born 21 June 1930 -RRB- is a Norwegian soil researcher .. He was born in Leinstrand .. Leinstrand. Leinstrand. He graduated from the Norwegian College of Agriculture in 1955 , and took the M.Sc .. Norwegian College of Agriculture. Norwegian College of Agriculture. degree at the University of Illinois in 1961 .. University of Illinois. University of Illinois. He was a professor at the Norwegian College of Agriculture from 1979 to 1989 , serving as rector from 1984 to 1989 , and headed the Norwegian Centre for Soil and Environmental Research from 1990 to 1995 .. Norwegian College of Agriculture. Norwegian College of Agriculture. rector. Rector ( academia ). Norwegian Centre for Soil and Environmental Research. Norwegian Centre for Soil and Environmental Research
not_related.