1. Bing, L.: AI and opinion mining. IEEE Intell. Syst. 25(3), 76–80 (2010)
2. Blair, O.: Sam pepper heavily criticised for vile fake murder prank video. http://www.independent.co.uk/news/people/sam-pepper-criticised-over-vile-prank-fake-murder-video-a6754861.html . Accessed 15 Dec 2015
3. Brit Lab/Head Squeeze.: 360 Production. https://www.youtube.com/user/HeadsqueezeTV . Accessed 15 Dec 2015
4. Chou, Y.K.: Actionable Gamification: Beyond Points, Badges, and Leaderboards. Leanpub, Fremont (2015)
5. Cunningham, H.: General Architecture for Text Engineering (GATE). https://gate.ac.uk/ . Accessed 10 Dec 2015