Examples A1 - A4 all pass.

Examples B1 - B3 pass, B4 fails.

Examples C1 and C2 pass, C3 and C4 fail.

Example D1 passes, D2 - D4 fail.

Example E1 - E3 pass, E4 fails.

Example F1 - F3 pass, F4 fails.

Example G1 - G3 pass, the outer element of G4 fail.

Example H1 and H2 pass, the outer element of H3 and H4 fail.

Example I1 and I2 pass, I3 and I4 fail.

Example J1 and J2 pass, J3 and J4 fail.

Example K1 and K2 pass, K3 and K4 fail.

Example L1 and L2 pass, the outer element of L3 and L4 fail.

Example M1 - M3 pass, the outer element of M4 fail.

Example N1 - N3 pass, the outer element of N4 fail.

Example O1 and O2 pass, the inner element of O3 and O4 fail.

Example P.