With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The nervous system of a spider can be found in the cephalothorax.
text_B: Reeducation in Romanian communist prisons was a series of processes initiated after the installment of the communist regime at the end of the second world war , that targeted the people who were considered hostile to the party , the political prisoners , both from the established prisons and labor camps .. communist regime. Socialist Republic of Romania. second world war. World War II. party. Romanian Communist Party. The purpose of the process was the indoctrination of the hostile elements with the Marxist -- Leninist ideology , that would lead to the failure of any active or passive resistance movement .. indoctrination. indoctrination. resistance movement. Romanian anti-communist resistance movement. Reeducation was either non-violent -- e.g. via communist propaganda -- or violent , as it was done in the Pitesti and Gherla prisons .. communist propaganda. communist propaganda. Pitesti. Pitesti prison
not_related.