What crew chief has an owner name Jack Roush and driver Greg Biffle?
CREATE TABLE table_name_12 (crew_chief VARCHAR, owner_s_ VARCHAR, driver_s_ VARCHAR)
SELECT crew_chief FROM table_name_12 WHERE owner_s_ = "jack roush" AND driver_s_ = "greg biffle"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_12 (crew_chief VARCHAR, owner_s_ VARCHAR, driver_s_ VARCHAR) Question: What crew chief has an owner name Jack Roush and driver Greg Biffle? [/INST] SELECT crew_chief FROM table_name_12 WHERE owner_s_ = "jack roush" AND driver_s_ = "greg biffle" </s>