Question: Name the womens singles for  Raina Tzvetkova Petya Nedelcheva
SQL: SELECT "Womens singles" FROM "1-14903491-1" WHERE "Womens doubles" = 'Raina Tzvetkova Petya Nedelcheva';

Question: Name the number of years for womens doubles being  Diana Koleva Emilia Dimitrova and  Jeliazko Valkov
SQL: SELECT COUNT("Year") FROM "1-14903491-1" WHERE "Womens doubles" = 'Diana Koleva Emilia Dimitrova' AND "Mens singles" = 'Jeliazko Valkov';

Question: Name the mens singles for  Jeliazko Valkov Dobrinka Peneva
SQL: SELECT "Mens singles" FROM "1-14903491-1" WHERE "Mixed doubles" = 'Jeliazko Valkov Dobrinka Peneva';

Question: Name the mens singles for 1989
SQL: SELECT "Mens singles" FROM "1-14903491-1" WHERE "Year" = 1989.0;

Question: Name the year for Victoria Hristova Neli Nedialkova
SQL: SELECT "Year" FROM "1-14903491-1" WHERE "Womens doubles" = 'Victoria Hristova Neli Nedialkova';

Question: Name the year for womens doubles being Raina Tzvetkova Emilia Dimitrova
SQL: SELECT "Year" FROM "1-14903491-1" WHERE "Womens doubles" = 'Raina Tzvetkova Emilia Dimitrova';