Who was the challenger when winner was kimio nonaga?
CREATE TABLE table_23982399_12 (challenger VARCHAR, winner VARCHAR)
SELECT challenger FROM table_23982399_12 WHERE winner = "Kimio Nonaga"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_23982399_12 (challenger VARCHAR, winner VARCHAR) Question: Who was the challenger when winner was kimio nonaga? [/INST] SELECT challenger FROM table_23982399_12 WHERE winner = "Kimio Nonaga" </s>