. . . . "2013-01-19Z"^^ . . "UFC on FX: Belfort vs. Bisping"@en . . "2013-02-23Z"^^ . "The year 2013 is the 21st year in the history of the Ultimate Fighting Championship (UFC), a mixed martial arts promotion based in the United States. 2013 started with UFC on FX: Belfort vs. Bisping. 2013 also saw the introduction of the women's bantamweight weight class with UFC 157: Rousey vs. Carmouche."@en . . "UFC on Fox: Henderson vs. Melendez"@en . . . . . "UFC 157: Rousey vs. Carmouche"@en . . . "2013-04-20Z"^^ .