Task: Explanation
Input (English): Operalia, The World Opera Competition is an annual international competition for young opera singers. Founded in 1993 by Plácido Domingo, the competition has helped launch the careers of several important artists, such as Joseph Calleja, Giuseppe Filianoti, Rolando Villazón, José Cura, Joyce DiDonato, Elizabeth Futral, Inva Mula, Ana María Martínez and Sonya Yoncheva. Question: Operalia, The World Opera Competition, helped launch the career of Bulgarian operatic soprano who was born on what day? Answer: born 25 December 1981
Output (English):  Founded in 1993 by Plácido Domingo, the competition has helped launch the careers of several important artists, such as Joseph Calleja, Giuseppe Filianoti, Rolando Villazón, José Cura, Joyce DiDonato, Elizabeth Futral, Inva Mula, Ana María Martínez and Sonya Yoncheva.