bbbb bbdd bblb bd-r bdii bdry bibb bibi bibl bidi bidr bild bili bill bilt bily birb bird biri birl birr birt biry bitd bitt blbt bldr blir blit bly- brdt brdy brid bril brit brrr bry- bryd btdt btrt btry bttb byil byit byld bylt byrd byrt byyd dbit dbtt dddd ddly ddry dibb diby didi didy diii dili dill dily dird dirl dirr dirt diti ditt diyi dlbd dlib dlii dlil dlit drib dril drit dry- dtrl dybt dydd dyit dyll dyr- dyrb dyri dyrt dyt- dyty dyyr i-by ibid ibly ibrd ibri ibtb ibtl ibyi idid idil idir idli idly idyl iiii iiit iitr iitt ilir ilit ill- illd illi illt illy irby iri- irid iril iriy irlb irri irti itby itil itll itri itry itty lblr lbrt ldry libr lidb lidl liii liir lilb lili lill lilt lily lird liri lirl lirr lirt liry litb litd liti litl litr litt lity liyl lldb llll llyr lrdd lrrr lrry ltbl ltib lttr ltyr lydd lyit lyly lytt rbbb rbbr rib- riby ridd ridi rill rily riri riti ritl ritt rldt rrrr rtdt rtlt rydy rytt ryyt tbil tbit tbrb tddb tdil tdri tibi tidd tidy tiit tild till tilr tilt tily tirb tird tiri tirl tirr tiry titi titt tiyi tldr tlli tri- trib tril trit trtr try- tryb ttbb tttt ttyd ttyl tybi tydd tydi tydy tyir tyl- tyld tyll tyr- tyrl tyrr tytd tyti tytt tyty ybry ydil ydyt yidi yild yili yill yilt yirb yird yirr yiti ylid ylli yrly yyyy