Name the duration for  vladimir vasyutin , alexander volkov
CREATE TABLE table_245801_1 (duration__days_ VARCHAR, crew VARCHAR)
SELECT COUNT(duration__days_) FROM table_245801_1 WHERE crew = "Vladimir Vasyutin , Alexander Volkov"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_245801_1 (duration__days_ VARCHAR, crew VARCHAR) Question: Name the duration for  vladimir vasyutin , alexander volkov [/INST] SELECT COUNT(duration__days_) FROM table_245801_1 WHERE crew = "Vladimir Vasyutin , Alexander Volkov" </s>