6	booked	5	ebook
5	booed	5	boked
4	oboe	4	kobo
4	book	4	boke
4	bode	3	oke
3	ode	3	obe
3	kob	3	ked
3	doe	3	dob
3	deb	3	boo
3	bod	3	bed
2	oo	2	ok
2	oe	2	od
2	eo	2	ed
2	do	2	de
2	bo	2	be