Name the number of years for womens doubles being  diana koleva emilia dimitrova and  jeliazko valkov
CREATE TABLE table_14903491_1 (year VARCHAR, womens_doubles VARCHAR, mens_singles VARCHAR)
SELECT COUNT(year) FROM table_14903491_1 WHERE womens_doubles = "Diana Koleva Emilia Dimitrova" AND mens_singles = "Jeliazko Valkov"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_14903491_1 (year VARCHAR, womens_doubles VARCHAR, mens_singles VARCHAR) Question: Name the number of years for womens doubles being  diana koleva emilia dimitrova and  jeliazko valkov [/INST] SELECT COUNT(year) FROM table_14903491_1 WHERE womens_doubles = "Diana Koleva Emilia Dimitrova" AND mens_singles = "Jeliazko Valkov" </s>