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_name_70 ( winner VARCHAR, runner_up VARCHAR, week_of VARCHAR, semi_finalists VARCHAR )

### Question ###
What is Winner, when Week is 8 May, when Semi Finalists is Helena Sukov Mary Pierce, and when Runner-Up is Conchita Mart nez Patricia Tarabini?

### Accurate SQL ###

SELECT winner FROM table_name_70 WHERE week_of = "8 may" AND semi_finalists = "helena suková mary pierce" AND runner_up = "conchita martínez patricia tarabini"