Ww - zoo
No
Xx - web
No
Ww - wolf
Yes
Zz - yogurt
No
Zz - zebra
Yes
Yy - water
No
Yy - yak
Yes
Xx - wax
Yes
Yy - zipper
No
Xx - box
Yes
Zz - fox
No
Ww - watch
Yes
Zz - zero
Yes
Yy - yoyo
Yes
Xx - yacht
No
Ww - six
No