Name the mens singles for jeliazko valkov dobrinka peneva
CREATE TABLE table_14903491_1 (
    mens_singles VARCHAR,
    mixed_doubles VARCHAR
)
SELECT mens_singles FROM table_14903491_1 WHERE mixed_doubles = "Jeliazko Valkov Dobrinka Peneva"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Name the mens singles for jeliazko valkov dobrinka peneva ### Input: CREATE TABLE table_14903491_1 (
    mens_singles VARCHAR,
    mixed_doubles VARCHAR
) ### Response: SELECT mens_singles FROM table_14903491_1 WHERE mixed_doubles = "Jeliazko Valkov Dobrinka Peneva"