How To Implement This Function With 2 Input Nand..

(+) =XOR

F(w,x,y,z)=(w'+x'+y')(+)xyz

i tried to :

F(w,x,y,z)=(w'+x'+y')(+)xyz=(w'+x'+y')' *(xyz) + (w'+x'+y')(xyz)'=
=(wxy)(xyz)+(w'+x'+y')(x'+y'+z')
..
..
in the end i get
=wxyz+w'x'+w'y'+w'z'+x'+x'y'+x'y'+y'+y'z'+y'z'

what to do know???
how to transform implement it with a two input line NANDs
???

This is how you do it with gates:
https://upload.wikimedia.org/wikipedia/commons/f/f1/XOR_Using_NAND.jpg

there is no article on some NAND drawing

there is no article on some NAND drawing
??