Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_40290 ( "Week of" text, "Tier" text, "Winner" text, "Runner-up" text, "Semi finalists" text )

### Question ###
What is the Runner-up with the tier was tier ii, and a Winner of gigi fern ndez natalia zvereva 5 7, 6 1, 6 4?

### Accurate SQL ###

SELECT "Runner-up" FROM table_40290 WHERE "Tier" = 'tier ii' AND "Winner" = 'gigi fernández natalia zvereva 5–7, 6–1, 6–4'