bbbb bbdd bd-r bdii bdry bibb bibi bidi bidr bidu birb bird biri birr birt biru biry bitd bitt bitu brdt brdy brid brit brrr brud brut bry- bryd btdt btrt btry bttb bubb bubi bubu budb budd budi budu budy buid buir buit buiu bur- burb burd buri burr burt buru bury but- buti butt buty buyi buyu byit byrd byrt byyd dbit dbtt dddd ddry ddub dibb diby didi didu didy diii dird dirr dirt diti ditt diyi diyu drib drit drub drui drut druu dry- dub- dubb dubu duby dudd dudu duid duir duit duri durt duru dury duty duur duut duyr dybt dybu dydd dyit dyr- dyrb dyri dyrt dyru dyt- dyty dyur dyyr i-by ibid ibrd ibri ibtb ibuy ibyi idid idir idub iiii iiit iitr iitt irby iri- irid iriy irri irti itby itri itry itty itur iuiu iuty rbbb rbbr rib- ribu riby ridd ridi riri riti ritt ritu rrrr rtdt rubb rubi rubu ruby rudd rudi rudy ruid ruit rurd ruri ruru ruti rutt rutu ruty ruud ruyd ruyi rydy rytt ryyt tbit tbrb tddb tdri tibi tibu tidd tidy tiit tiiu tirb tird tiri tirr tiru tiry titi titt titu tiyi tri- trib trit trtr trub trud trut truu try- tryb ttbb tttt ttyd tubb tubr tubu tudi tudu tuit tuiu turb turd turi turr turt turu tury tuti tutt tutu tuty tybi tydd tydi tydy tyir tyr- tyrr tytd tyti tytt tyty ubbi ubid ubii ubir ubit ubud uddi udid udir uirr urbi urdu urdy urib uriu urri urry urur urut utby utid utri utti uttu uuri uuuu uyir ybry ydyt yidi yidu yirb yird yirr yiti yiud yubu yudu yuit yurd yuri yurt yury yutu yuty yuyu yyyy