CREATE TABLE table_2637 ("Best Male MC" TEXT, "Best Female MC" TEXT, "Best Male Artist" TEXT, "Best Female Artist" TEXT, "Best Male Lyricist" TEXT, "Best Female Lyricist" TEXT, "Best Male Record" TEXT)

Who won the Best Female Artist where Best R&B Contributor won the Best Male Lyricist?
SELECT "Best Female Artist" FROM table_2637 WHERE "Best Male Lyricist" = 'Best R&B Contributor'
SELECT "Best Female Artist" FROM "table_2637" WHERE "Best Male Lyricist" = 'Best R&B Contributor'