CREATE TABLE table_36783 ("Outcome" TEXT, "Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Opponent" TEXT, "Score" TEXT)

Which Score has an Outcome of runner-up, and a Tournament of johannesburg?
SELECT "Score" FROM table_36783 WHERE "Outcome" = 'runner-up' AND "Tournament" = 'johannesburg'
SELECT "Score" FROM "table_36783" WHERE "Outcome" = 'runner-up' AND "Tournament" = 'johannesburg'