Who was the President of Czechoslovakia when an ambassador's tenure began in 1950?
CREATE TABLE table_name_99 (czechoslovak_president VARCHAR, tenure_begin VARCHAR)
SELECT czechoslovak_president FROM table_name_99 WHERE tenure_begin = "1950"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_99 (czechoslovak_president VARCHAR, tenure_begin VARCHAR) Question: Who was the President of Czechoslovakia when an ambassador's tenure began in 1950? [/INST] SELECT czechoslovak_president FROM table_name_99 WHERE tenure_begin = "1950" </s>