bbbb bbin bblb bibb bibi bibl biin bili bill bilt bilu bily bin- bini binn bint binu biny birb biri birl birn birr birt biru biry bitt bitu blbt blin blir blit blni blub blur blut bly- blyn bnib bnin bnrr bril brin brit brrr brun brut bry- bryn btrt btry bttb bubb bubi bubu buin buir buit buiu bulb buli bull bult bulu bunb buni bunn bunt bunu bur- burb buri burl burn burr burt buru bury but- buti butt buty buyi buyl buyu byil byit bylt byrn byrt byul byun i-by ibly ibri ibtb ibtl ibuy ibyi iiii iiit iitr iitt ilin ilir ilit ill- illi illt illy ilni ilut iluy inby init inly inni innr innu inny inri inti intl intn intr intu inui inul inun irby iri- iril irin iriy irlb irri irti irul irun iryn itby itil itin itll itri itry itty itur iuiu iuty lblr lbrt libr libu liii liin liir lilb lili lill lilt lilu lily linn lint liny liri lirl lirn lirr lirt liru liry litb liti litl litr litt litu lity liun liut liyl liyu llll llyn llyr lrrr lrry ltbl ltib ltnt lttr ltyr luby luin luit luli lull lulu luni lunn lunt luny luri lurt lury luti luyi luyt lyin lyit lyly lynn lytt lyun lyyn n-ii nbti nbty nibi niir niit niiu nili nill nilt nilu nini ninl nirt niru nitb niti nitr nity niur niyi nlrb nnit nnnn nntn nrlb nrrl nrtl ntnu ntrl ntru nttr ntui nubi nubl nuby nuin nuit nuli null nunn nunt nuny nuri nurl nurn nurr nurt nuru nutt nutu nyit nyll nylt nynt nyny nyrb nytb nyul rbbb rbbr rib- ribu riby riin rill rilu rily rinn riny riri riti ritl ritt ritu rlin rnbr rnin rnli rnnt rnut rrrr rrun rtlt rubb rubi rubu ruby ruin ruit rull ruly runi runn runt runy ruri ruru ruti rutl rutt rutu ruty ruun ruyi ruyl rynn rynt rytt ryun ryyt tbil tbit tbrb tibi tibu tiit tiiu till tiln tilr tilt tily tini tinn tint tinu tiny tirb tiri tirl tirr tiru tiry titi titt titu tiyi tiyn tlli tnut tri- trib tril trin trit trtr trub trun trut truu try- tryb ttbb tttt ttul ttyl tubb tubr tubu tuil tuin tuit tuiu tuli tull tulu tuly tunb tuni tunn tunu tuny turb turi turn turr turt turu tury tuti tutl tutt tutu tuty tuyl tuyn tybi tyin tyir tyl- tyll tynt tyny tyr- tyrl tyrr tyti tytt tyty tyyn ubbi ubii ubir ubit ubli ubly uint uirr ulli ullr ully ulti ultt ulul uni- unii unin unir unit unni untb unty unut urbi urib urin uriu urni urri urry urun urur urut uryn utby util utin utri utti uttu uulu uuni uuri uuuu uuyn uyin uyir ybnl ybry yili yill yilt yirb yirn yirr yiti ylli yrin yrly yrun yryn yubu yuin yuit yuli yulu yuny yuri yurn yurt yury yutu yuty yuyu yyyy