'Coincidence 50% - structured 40%' is a painting about making a painting and how that arises. The artist flatly moved at first a pencil unthinkingly over a canvas and then decided to change the structure. LvdS: "It did not seem so interesting to me to continue in the same manner halfway, and then I drew vertical lines."
The cheerful arrows upwards give the painting a positive feel, while one may wonder where the remaining 10% consists of.