With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Weeknd is a Chinese singer.
text_B: Matteo Salvi -LRB- 24 November 1816 -- 18 October 1887 -RRB- was a composer of opera and classical music and a theatre director .. composer. composer. opera. opera. classical music. classical music. Salvi was born in Botta di Sedrina -LRB- Provincia di Bergamo -RRB- , Italy .. Bergamo. Bergamo. Italy. Italy. A student of Gaetano Donizetti , he is best known for having completed the score of Donizetti 's unfinished opera Le duc d'Albe for its first public performance in 1882 , some forty years after Donizetti 's death .. opera. opera. Gaetano Donizetti. Donizetti. -LRB- The libretto was translated into Italian , and the opera was performed as Il duca d'Alba . -RRB-. opera. opera. Salvi is usually credited as the composer of the tenor aria `` Angelo casto e bel '' in Il duca d'Alba , although as he was helped in the reconstruction of Donizetti 's score by several composers , including Amilcare Ponchielli , there has been some dispute as to the degree to which he was the aria 's sole composer .. composer. composer. Amilcare Ponchielli. Amilcare Ponchielli. He died in Rieti , Italy .. Italy. Italy. Rieti. Rieti
not_related.