What RIAA Sales Certification was awarded to the song that had a Billboard 200 Peak of 21?
CREATE TABLE table_name_1 (riaa_sales_certification VARCHAR, billboard_200_peak VARCHAR)
SELECT riaa_sales_certification FROM table_name_1 WHERE billboard_200_peak = 21
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_1 (riaa_sales_certification VARCHAR, billboard_200_peak VARCHAR) Question: What RIAA Sales Certification was awarded to the song that had a Billboard 200 Peak of 21? [/INST] SELECT riaa_sales_certification FROM table_name_1 WHERE billboard_200_peak = 21 </s>