What source has a race winner of ben adriaenssen / ben van den bogaart, and the gp winner of ben adriaenssen / ben van den bogaart, for the date of 1 april?
CREATE TABLE table_name_8 (source VARCHAR, date VARCHAR, race_winners VARCHAR, gp_winner VARCHAR)
SELECT source FROM table_name_8 WHERE race_winners = "ben adriaenssen / ben van den bogaart" AND gp_winner = "ben adriaenssen / ben van den bogaart" AND date = "1 april"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_8 (source VARCHAR, date VARCHAR, race_winners VARCHAR, gp_winner VARCHAR) Question: What source has a race winner of ben adriaenssen / ben van den bogaart, and the gp winner of ben adriaenssen / ben van den bogaart, for the date of 1 april? [/INST] SELECT source FROM table_name_8 WHERE race_winners = "ben adriaenssen / ben van den bogaart" AND gp_winner = "ben adriaenssen / ben van den bogaart" AND date = "1 april" </s>