CREATE TABLE table_9128 ("Tournament" TEXT, "Surface" TEXT, "Week" TEXT, "Winner" TEXT, "Finalist" TEXT, "Semifinalists" TEXT)

who were the semifinalists for the tournament in montreal?
SELECT "Semifinalists" FROM table_9128 WHERE "Tournament" = 'montreal'
SELECT "Semifinalists" FROM "table_9128" WHERE "Tournament" = 'montreal'