kind: executed
lang: Python
exo: welcome.lessons.welcome.bdr.BDR
outcome: fail
kind: switched
switchto: welcome.lessons.welcome.bdr.BDR2
lang: Python
exo: welcome.lessons.welcome.bdr.BDR
outcome: pass
kind: switched
switchto: welcome.lessons.welcome.bdr.BDR
lang: Python
exo: welcome.lessons.welcome.bdr.BDR2
outcome: pass