The four puzzle pieces below fit into the 4 x 4 grid without rotation or reflection.

K touches W and G (they can touch diagonally).
F touches L and Z (they can touch diagonally).
X does not touch K, even diagonally.
Y is in a row below K's row.
Based on these clues, where is e located? Answer by giving me the letter and number coordinate (for example the top left hand square would be (a,1)