WordNews/clients/14-angular - `git subtree add --prefix=clients/14-angular https://github.com/endlessfrank/translate_heroku_extension.git master`
                /15-angular - `git subtree add --prefix=clients/15-angular https://github.com/laizhouxia/fyp-chrome-extension.git master`
                /16-android - this original WordNews repository (before renaming).
                /17-android - `git subtree add --prefix=clients/17-android git@github.com:WING-NUS/Word-News-Android.git master`
        /server/ - server code - `git subtree add --prefix=server https://github.com/kanghj/wordnews_server.git master`
        /datasets/ - for experimental datasets
        /pubs/ - for our publications
             /nlp-tea-2015 - git subtree add --prefix=pubs/nlp-tea-2015 ssh://wing.nus@cte.comp.nus.edu.sg/home/wing.nus/GITRepositories/wing.nus/nlp-tea-2015 master
             /nlp-tea-2016 - git subtree add --prefix=pubs/nlp-tea-2016 https://git.overleaf.com/5399480qspfqg master
        /lib/ - for dependendent libraries