Complex sentence: This artwork is a performative manifestation of Venn diagrams, which were forbidden from being taught in elementary schools during the 1970s, as the concept of intersection and collaboration were seen as potentially subversive.
Split into simpler sentences: This artwork is a performative manifestation of "Venn Diagrams", which were forbidden from being taught in elementary schools during the 1970s. The Venn diagrams and the related concept of intersection and collaboration were seen as potentially subversive.