pen1v1v1v1x1x2pencil1 is the combination of pen1v1v1v1x1x2 and pencil1.
pen1v1v1v1x1x2pencil1 is 1 of the 24 diagrams interpreted in 24d24iS_esO4bsPSpbVRssS2-EPB and 1 of the 8 diagrams interpreted in ccloudlab1.
pen1v1v1v1x1x2pencil1 is part of what i call Illustrator studies, that is, diagrams that focus on the specific tools of Adobe Illustrator.