question: Who wrote `` Russian language at the turn of the 20th-21st centuries '' ?
answer: A. L. Arefyev
turker_answer: A. L. Arefyev wrote `` Russian language at the turn of the 20th-21st centuries '' .
rule-based: A. L. Arefyev wrote `` Russian language at the turn of the 20th-21st centuries '' .