Read the following statements and choose the correct alternative.
(i) A is north of E and west of C.
(ii) B is north for A and west of F.
(iii) D is south and east of A.
(iv) E is north of F and east of D.
(v) F is north of D and west of A.
(vi) C is south of F and west of D.
Which of the following statements, if true, would make the information in the numbered statements more specific?