Arranging nine friends around a circle facing center with all constraints: I is 5th right of G. C not adjacent to G or I. B between H and E. C fourth left of E. D second right of F. H not adjacent to I.
Working out positions clockwise: G, A, F, D, I, H, B, E, C. Anti-clockwise from B: E, D (3rd position going anti-clockwise matches D's relative position).