CREATE TABLE table_24615 ("Original number" CLOB, "UIC number" CLOB, "Name" CLOB, "Constructer" CLOB, "constructor number" FLOAT, "Year" FLOAT, "Withdrawn" CLOB, "Kilometers worked" FLOAT)

When 'virgen de gracia' is the name what is the date of withdrawn?
SELECT "Withdrawn" FROM table_24615 WHERE "Name" = 'Virgen de Gracia'
SELECT "Withdrawn" FROM "table_24615" WHERE "Name" = 'Virgen de Gracia'