CREATE TABLE table_76050 ("Round" TEXT, "Main date" TEXT, "Number of fixtures" FLOAT, "Clubs" TEXT, "New entries this round" TEXT)

What is the New entries this round when the round is the semi-finals?
SELECT "New entries this round" FROM table_76050 WHERE "Round" = 'semi-finals'
SELECT "New entries this round" FROM "table_76050" WHERE "Round" = 'semi-finals'