How many persons sit between H and D when counted from the right of D?

Study the following information carefully and answer the below questions Eight persons- C, D, E, F, G, H, I and J are sitting around the square table facing the centre. Four of them sit in the corner and four of them sit in the middle of the sides of the table, but not necessarily in the same order. F sits third to the left of G. One person sits between G and C who sits at the corner of the table. E and J sit opposite to each other. E is not an immediate neighbour of
C.D sits second to the left of E.I sits second to the right of H.