With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Toy Story 3 lost the Oscar for Best Sound Editing.
text_B: Leonard Abraham Gordon is a historian of South Asia , especially of Bengal , whose 1990 book Brothers Against the Raj  : A Biography of Indian Nationalist Leaders Sarat and Subhas Chandra Bose is considered the definitive biography of Subhas Chandra Bose .. South Asia. South Asia. Bengal. Bengal. Sarat. Sarat Chandra Bose. Subhas Chandra Bose. Subhas Chandra Bose
not_related.