With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Sociology is a study of something.
text_B: is a private women 's university in Nagasaki , Japan .. Nagasaki. Nagasaki, Nagasaki. Japan. Japan. It enrolls approximately 1,300 students and has exchange agreements with 28 universities in 8 countries .
not_related.