CREATE TABLE table_50526 ("Tournament" CLOB, "Surface" CLOB, "Week" CLOB, "Winner" CLOB, "Finalist" CLOB, "Semifinalists" CLOB)

Who was the semifinalist at the tournament in miami?
SELECT "Semifinalists" FROM table_50526 WHERE "Tournament" = 'miami'
SELECT "Semifinalists" FROM "table_50526" WHERE "Tournament" = 'miami'