6	career	5	racer
5	carer	4	rear
4	rare	4	race
4	cere	4	carr
4	care	4	arre
4	acre	4	acer
3	ree	3	rec
3	rea	3	err
3	ere	3	era
3	ear	3	cee
3	car	3	are
3	arc	3	ace
2	re	2	er
2	ee	2	ar
2	ae