2. regrouping of elements at enunciative level with the repetition of
the selected disk, for example in 14-15 with the repetition of 'the pink disk'

2.3. Demarcation of episods (I give here only criteria for Olivier, trials 1
and 2): it defines the structuration and the boundary of agregates of disks
and of moves at enunciative level, and at situational level. It define also
the structuration of planning.
- criteria at enunciative level : change in the denomination of a selected
disk; example trial 1, in 1