8	dihybrid	6	hydrid
6	hybrid	5	birdy
5	bidri	5	biddy
4	yird	4	irid
4	drib	4	didy
4	didi	4	biri
4	bird	4	bidi
3	rid	3	rib
3	hid	3	dry
3	did	3	dib
3	bid	2	yi
2	id	2	hi
2	by	2	bi