With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Unapologetic is a Rihanna album.
text_B: Imre -LRB- Emmerich -RRB- Menyhay -LRB- born 12 May 1931 in Budafok -RRB- is a Hungarian-Austrian economist , pedagogue , sociologist , and psychologist of economics .. Budafok. Budafok. Hungarian-Austrian. Hungarian and Austrian people. economist. economist. pedagogue. pedagogue. sociologist. sociologist. His fields of research are pedagogy , economic psychology and economic sociology development .. His key works are Management , Business , Ethics - Social Theory and Background by the Application of Economic Sociology , dealing with social theoretical economic sociology , and Homo Oeconomicus And Unfinished Creation - The Analytical Background by Economic Psychology and Its Application , dealing with psychoanalytical economic psychology .
not_related.