Seven friends, A, B, C, D, E, F and G, are sitting in a row facing north. B is not sitting in the middle of the row. A is sitting second to the right of B. D is sitting second to the left of F. G is sitting to the immediate left of F. C is sitting second to the right of G. E is sitting between B and A. Who is sitting in the middle of the row?

A

F

B

D

C

G

D

E