With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Promise is set in the Ottoman Empire in its final years.
text_B: Chittaprosad Bhattacharya was a political artist of the mid-20th century .. He preferred watercolor and printmaking , avoiding oil on canvas .. Chittaprosad used prints to disseminate leftist ideas and propaganda .
not_related.