(i) A, B, C, D, E, F and G are seven members standing in a row (not necessarily in the same order) facing north.
(ii) C and B have as many members between them as G and C have between them.
(iii) D, who is 3rd from the extreme left, is 3rd to the left of E.
(iv) A and D are neiighbors and F and C are neighbors.