-ing bbbb bbin bblb bbng bgun bibb bibi bibl bigb bigg bign bigt bigu biin bili bill bilt bilu bin- bing bini binn bint binu bitt bitu blbt blin blit blni blub blut bnib bnin bttb bubb bubi bubu bugg bugi buin buit buiu bulb bulg buli bull bult bulu bunb bung buni bunn bunt bunu but- buti butt ggbt gggg gibb gigg gigi gign gilg gili gill gilt ging gini ginn ginu gli- glib glin glit glub glug glui glun glut gnib gnin gnit gnti gubb gubi gubu gugb gugg gugi gugu guib guil guin gulb guli gull gult gulu gung gunn gunt guti gutt gutu ibtb ibtl igil igli iglu igni ignu iiii iiit iitt ilin ilit ill- illi illt ilni ilut inig init inni innu intg inti intl intn intu inui inul inun itil itin itll iuiu lbgt lbug lgbt lgbu lgin lgtn libu ligg ligi lign liig liii liin lilb lilg lili lill lilt lilu ling linn lint litb liti litl litt litu liun liut llll ltbl ltib ltng ltnt lugg lugi lugu luin luit luli lull lulu lung luni lunn lunt luti n-ii nbti ngtn nguu nibi nigg nigt niit niiu nili nill nilt nilu ning nini ninl nitb niti nlgn nngn nnit nnnn nntn ntnu ntui nubi nubl nuin nuit nuli null nung nunn nunt nutt nutu tbil tbit tibi tibu tigi tiit tiiu till tiln tilt ting tini tinn tint tinu titi titt titu tlli tnut ttbb tttt ttul tubb tubu tugg tugu tuig tuil tuin tuit tuiu tuli tull tulu tunb tung tuni tunn tunu tuti tutl tutt tutu ubbi ubii ubit ubli uggt ugli ugni uguu uint ulli ulti ultt ulul ungu uni- unii unin unit unni untb unut util utin utti uttu utug uulu uuni uuuu