CREATE TABLE table_name_70 (winner VARCHAR(255), runner_up VARCHAR(255), week_of VARCHAR(255), semi_finalists VARCHAR(255))
What is Winner, when Week is 8 May, when Semi Finalists is Helena Suková Mary Pierce, and when Runner-Up is Conchita Martínez Patricia Tarabini?
    
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"