With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Rabat is Morocco's second largest city.
text_B: The Italian Catholic Diocese of Orvieto-Todi -LRB- Dioecesis Urbevetana-Tudertina -RRB- , in central Italy , was created in 1986 when the historical Diocese of Orvieto was united to the Diocese of Todi .. Orvieto. Orvieto. Italy. Italy. Diocese of Todi. Diocese of Todi. This diocese is directly subject to the Holy See .. Holy See. Holy See. The current bishop is Benedetto Tuzia .. Benedetto Tuzia. Benedetto Tuzia
not_related.