Is it possible to mark sole subsets inside the circles?

[pwwang]

In the above plot, A.a, B.b and C.c are sole subsets (without overlaping with other groups). Is it possible? We have 6 groups, but we only need a 3-group layout.

[gaospecial]

I am afraid you have to draw it by yourself. However, ggVennDiagram may be helpful in this procedure. Firstly, draw three-set Venn with ggVennDiagram, and then export it as a .pptx or .pdf and add subsets.

[pwwang]

Thanks for the reply. I was just wondering if there is a better way to do it. I implemented it using geom_sf_label.