Task: Explanation
Input (English): José Plácido Domingo Embil, {'1': ", '2': ", '3': ", '4': "} (] ; born 21 January 1941), known as Plácido Domingo, is a Spanish tenor, conductor and arts administrator. He has recorded over a hundred complete operas and is well known for his versatility, regularly performing in Italian, French, German, Spanish, English and Russian in the most prestigious opera houses in the world. Although primarily a "lirico-spinto" tenor for most of his career, especially popular for his Cavaradossi, Hoffmann, Don José, and Canio, he quickly moved into more dramatic roles, becoming the most acclaimed Otello of his generation. In the early 2010s, he transitioned from the tenor repertory into almost exclusively baritone parts, most notably Simon Boccanegra. He has performed 147 different roles. Question: Daniel Rodríguez (born May 24, 1964) is a Puerto Rican American operatic tenor from New York City, this led to an offer of formal training from José Plácido Domingo Embil, a Spanish tenor, conductor and arts administrator, commonly known as who? Answer: Plácido Domingo
Output (English): José Plácido Domingo Embil, {1: , 2: , 3: , 4: }  ; born 21 January 1941, known as Plácido Domingo, is a Spanish tenor, conductor and arts administrator.