CREATE TABLE table_7049 ("English country name" TEXT, "Arabic romanised country name" TEXT, "Arabic country name" TEXT, "English capital name" TEXT, "Arabic romanised capital name" TEXT, "Arabic capital name" TEXT)

What is the name of the capital, in Arabic, that is called n'djamena in English?
SELECT "Arabic capital name" FROM table_7049 WHERE "English capital name" = 'n''djamena'
SELECT "Arabic capital name" FROM "table_7049" WHERE "English capital name" = 'n\'djamena'