CREATE TABLE table_74091 ("Episode" TEXT, "Date" TEXT, "Official ITV1 rating  ( millions ) " TEXT, "Weekly rank" FLOAT, "Share  ( % ) " TEXT, "Official ITV1 HD rating  ( millions ) " TEXT, "Total ITV1 viewers  ( millions ) " TEXT)

What was the share (%) for the Semi-Final 2 episode?
SELECT "Share (%)" FROM table_74091 WHERE "Episode" = 'Semi-final 2'
SELECT "Share (%)" FROM "table_74091" WHERE "Episode" = 'Semi-final 2'