anchor.diff:                    span on 9 May, Fri
                   p.tagline by Hackers and Painters
               li
  +              a(href='http://www.meetup.com/R-User-Group-SG/events/171103862/')
  +                p May Short Talks
  +                  span on 14 May, Wed
  +                p.tagline by R User Group - Singapore (RUGS)
  +            li
  +              a(href='http://www.meetup.com/DataScience-SG-Singapore/events/172525552/')
  +                p MOOC Study Group @ Data Science SG
  +                  span on 24 May, Sat
  +                p.tagline by DataScience SG
  +            li
                 a(href='http://www.eventbrite.com/e/hack-night-shells-and-environments-tickets-6925068065')
                   p Hack Night - Shells and Environments
                     span on 29 May, Thu
                   p.tagline by Neo Singapore
  -
  +            li
  +              a(href='http://www.meetup.com/DataScience-SG-Singapore/events/171899412/')
  +                p DataScience SG Meetup
  +                  span on 31 May, Sat
  +                p.tagline by DataScience SG
  +            li
  +              a(href='https://www.eventbrite.com/e/matt-mullenweg-live-tickets-3836477006')
  +                p Matt Mullenweg Live!
  +                  span on 4 Jun, Wed
  +                p.tagline by Singapore PHP Developers
   
           section
             h3 open source
  
positive.code:                 p Scala and Reactive Programming Practice in Mobile Social Networks
                    span on 5 May, Mon
                  p.tagline by Bubbly TechTalks
              li
                a(href='http://www.meetup.com/Singapore-Android-Developers/events/178965412/')
                  p May Meetup + Startup Asia SG
  
negative.code:           ul.open-list.first
  
              li
                a(href='https://www.facebook.com/events/1421654661427734')
                  p Be a Maker: Lets make a carnival game
                    span on 3 May, Sat
  