There were three themes they could choose from: vacations, real-time eduction, and meeting new people (more detail here: http://6.470.scripts.mit.edu/2013/compe

There were three themes they could choose from: vacations, real-time eduction, and meeting new people (more detail here: http://6.470.scripts.mit.edu/2013/competition/challenge http://6.470.scripts.mit.edu/2013/competition/challenge).