CREATE TABLE table_35801 ("Date" CLOB, "Tournament" CLOB, "Location" CLOB, "Winner" CLOB, "Score" CLOB, "1st prize  (  $  ) " FLOAT)

what is the 1st prize for may 21
SELECT SUM("1st prize ( $ )") FROM table_35801 WHERE "Date" = 'may 21'
SELECT SUM("1st prize ( $ )") FROM "table_35801" WHERE "Date" = 'may 21'