Question: Alexander Borodin was part of a group of 19th century composers that were known as what "number"?
Sentence (from "Pyotr Ilyich Tchaikovsky and The Five"): Along with critic Vladimir Stasov, who supported The Five, Balakirev attacked relentlessly both the Saint Petersburg Conservatory, from which Tchaikovsky had graduated, and its founder Anton Rubinstein, orally and in print.
Relevant evidence: No