Table 1. Complexity of five-sets data.

Data Set	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
1-set intersections	4	5	5	5	4	4	5	5	5	5	5	4	4	4	5	5
2-set intersections	3	3	4	4	3	5	5	5	5	5	5	5	6	5	6	4
3-set intersections	2	1	1	1	3	1		1	1	2	2	2	2	3	4
4-set intersections												1		1
Total intersections	9	9	10	10	10	10	10	11	11	12	12	12	12	13	15	9
Card. range sets	2–16	4–34	5–21	3-15	3–54	7–28	11-32	10-30	4-44	11-40	13–119	9–79	11-90	23–43	14–84	1–20
Card. range int.	1–6	1–16	1–14	2–6	2–18	1–10	3-22	2–17	1–10	2–20	2–81	1–42	2–40	2–16	2–16	2–10
Total items	28	45	54	32	64	44	87	59	54	84	155	103	111	74	116	45
Task Type	S>	S<	I>	I<	S>	S<	I>	I<	S>	S<	I>	I<	S>	S<	I>	I<