Venn diagrams use sets of things. “Sets” is a mathematical term that means a collection. In math, sets are denoted by curlicue brackets, such as in the following example: “birds: {parrots, parakeets, finches, doves, cardinals}"[2] X Research source

The textbox will be drawn white. Click on the textbox, then click on the “Format” tab at the top. Under “Shape Fill,” select “no fill,” and under “Shape Outline,” select “No Outline. " That way, the textbox will now match the Venn diagram’s colors. Add textboxes for all the overlapping areas.