With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: John Cena is an American wrestler.
text_B: Mao is a city in Chad , the capital of the Kanem Region and of the department also named Kanem .. Region. Regions of Chad. Kanem. Kanem ( department ). Chad. Tchad. Kanem Region. Kanem Region. department. departments of Chad. It is the 16th most populous city in Chad , and is located 226 km north-northeast of N'Djamena .. Chad. Tchad. N'Djamena. N'Djamena. As in other Chadian regions , Mao is ruled by both a traditional Sultan and by central government officials .. The Sultan of Kanem , who resides in Mao , is the traditional chief of the Kanembou people .. Kanem. Kanem ( department ). Kanembou people. Kanembu people. Moves toward decentralisation have been stymied by the complex and sometimes tense relationships between traditional rulers in Chad and national authorities .. Chad. Tchad. On the border of the Sahara , Mao 's geography is marked by sand dunes and sparse vegetation .. Sahara. Sahara. A large majority of Mao 's residents are Muslim .. Muslim. Muslim. However , there are two Christian churches -LRB- one Catholic and one Protestant -RRB- in Mao .. Christian. Christian. The town has a small airport , Mao Airport , with a paved runway .. Mao Airport. Mao Airport
not_related.