CREATE TABLE table_47455 ("Election" TEXT, "Candidate" TEXT, "Number of votes" TEXT, "Share of votes" TEXT, "Outcome of election" TEXT)

What is the election with an outcome of ndc opposition and 2,728,241 votes?
SELECT "Election" FROM table_47455 WHERE "Outcome of election" = 'ndc opposition' AND "Number of votes" = '2,728,241'
SELECT "Election" FROM "table_47455" WHERE "Number of votes" = '2,728,241' AND "Outcome of election" = 'ndc opposition'