There are eight friends A, B, C, D, E, F, G and H sitting around a square table in such a way that four friends are sitting at the corner and four friends sitting at each side of the table but not necessarily in the same order. All of them are facing the center. B is sitting third to the right of D. Only one person sitting between D and H. C is sitting third to the left of G who is sitting immediate left of H. A is immediate neighbor of B. D is sitting at side. E is not an immediate neighbor of C. How many people are sitting between F and H when counted from the left of F?