With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Red is an American novel.
text_B: Tavarelli may refer to  :. Gianluca Maria Tavarelli , Italian director and screenwriter. Gianluca Maria Tavarelli. Gianluca Maria Tavarelli. Ricardo Tavarelli , Paraguayan footballer. Ricardo Tavarelli. Ricardo Tavarelli
not_related.