Consider the following statements:
- There are six villages A, B, C, D, E and F.
- F is 1 km to the west of D.
- B is 1 km to the east of E.
- A is 2 km to the north of E.
- C is 1 km to the east of A.
- D is 1 km to the south of A.
Which three villages are in a line?