Installation Knot This installation fills a volume, and compartmentalizes it into different spaces. It becomes a labyrinth with passages and places. This installation is based on a knitting node, the trefoil knot, a primitive form on which the design of the 3-dimensional structure is modeled. The trefoil can be obtained by joining together the two ends of a common overhand knot, resulting in a knotted loop. The trefoil is named after the three-leaf clover (or trefoil) plant.