cong[7], dong[7], gont[7], tong[7], togo[7], codo[6], nogo[6], ogon[6], tond[6], donn[5], noto[5], tono[5], nono[4],
dog[6], tog[6], cod[5], doc[5], gon[5], noc[4], dno[4], don[4], odo[4], not[4], ton[4], oto[4], non[3], ono[3],
go[4], co[3], do[3], od[3], ot[3], to[3], no[2], on[2],
