R_i

R (R_i)

S (R_i)

R (R_i) ∩ S (R_i)

Level

R₂

2, 9, 10, 12, 13

2, 9, 10, 12, 13

2, 9, 10, 12, 13

IV

R₉

2, 9, 10, 12, 13

2, 9, 10, 12, 13

2, 9, 10, 12, 13

IV

R₁₀

2, 9, 10, 12, 13

2, 9, 10, 12, 13

2, 9, 10, 12, 13

IV

R₁₂

2, 9, 10, 12, 13

2, 9, 10, 12, 13

2, 9, 10, 12, 13

IV

R₁₃

2, 9, 10, 12, 13

2, 9, 10, 12, 13

2, 9, 10, 12, 13

IV