5 participants each come in a cabin. The first revises the "Text X", then passes it to the next cabin. The second participant, in the second cabin, revises the "Text X", and in turn passes the work revised the cabin next.
When one of the participants believed that the revisions introduced to the "Text X" are sufficient for him, he pushes the button and the green light on the outside of his cabin. However, the lock of the cabin remains closed until all participants are satisfied with the revisions, press the button and turn on the green light. If the "Text X" comes in a cabin and its occupant, reading the corrections of the others, believes that it is removed from the version congenial to him, he can press the button and turn off the light green.
The "Text X" continues to move in a circular booth in the cabin as long as all participants agree to its final revision. However, being closed in their own cabin, they don't see how many and which green lights are on, then continue to move the "Text X" from the previous cabin to the next, making any additional changes to meet the wishes of the other participants and be free to go out.
Whereas the participants can not communicate with each other, and do not know how many green lights are on or not, the "Text X" will continue to turn from one cabin to another for a long time, since each subsequent correction to meet the favor of the other participants could move it away from the version approved by all.
The purpose of the installation is to get out of the cabins, unlocking all locks simultaneously.
