ruck[8], knut[8], kurt[8], stuk[8], knur[7], skun[7], kurs[7], nurt[7], sutr[7],
kuc[7], tuk[7], kun[6], cru[6], kur[6], suk[6], nut[6], rut[6], tur[6], stu[6], ust[6], nur[5], run[5], urn[5], snu[5], rus[5], sur[5],
ku[5], tu[5], ut[5], nu[4], su[4], ts[3],
