[NTG-context] Exercise sets

All, I'd like to design an exercise environment that will keep both the exercise and solution together. Something like: \startExercise Blah, blah, blah. \startSolution Blah, blah, blah \stopSolution \stopExercise At a higher level, something with parts, like: \startExercise Blah, blah, blah, ... \item Blah, blah, blah, ... \startSolution Blah, blah, blah, .. \stopSolution \item Blah, blah, blah, ... \startSolution Blah, blah, blah, .. \stopSolution \item Blah, blah, blah, ... \startSolution Blah, blah, blah, .. \stopSolution \stopExercise I'd like the exercises to get typeset in place, but the even solutions should go to the end of the text. Has anyone done something similar in Context?