6	rigids	5	sigri
5	rigid	5	irids
5	grids	5	girds
4	rigs	4	rids
4	iris	4	irid
4	grid	4	gird
4	gids	4	digs
3	sri	3	sir
3	rig	3	rid
3	ids	3	gis
3	gid	3	dis
3	dig	2	si
2	is	2	id
2	gi