claim: Nate Diaz competed in World Extreme Cagefighting.
evidence: Wacom usually refers to  :. Wacom -LRB- company -RRB- , a Japanese producer of graphics tablets and related products. Wacom may also refer to  :. World Apostolic Congress on Mercy. World Apostolic Congress on Mercy. World Apostolic Congress on Mercy. European educational project WACOM -LRB- WAter COmpetences Model -RRB-