5	toast	5	tasto
5	stoat	4	tots
4	tost	4	tosa
4	tats	4	taos
4	stot	4	stoa
4	stat	4	oats
4	oast	3	tot
3	tat	3	tas
3	tao	3	sot
3	sat	3	oat
3	att	3	ats
2	to	2	ta
2	so	2	os
2	at	2	as