bbbb bblb bibb bibi bibl bili bill bilt bily birb biri birl birr birt biry bitt blbt blir blit bly- bril brit brrr bry- btrt btry bttb byil byit bylt byrt i-by ibly ibri ibtb ibtl ibyi iiii iiit iitr iitt ilir ilit ill- illi illt illy irby iri- iril iriy irlb irri irti itby itil itll itri itry itty lblr lbrt libr liii liir lilb lili lill lilt lily liri lirl lirr lirt liry litb liti litl litr litt lity liyl llll llyr lrrr lrry ltbl ltib lttr ltyr lyit lyly lytt rbbb rbbr rib- riby rill rily riri riti ritl ritt rrrr rtlt rytt ryyt tbil tbit tbrb tibi tiit till tilr tilt tily tirb tiri tirl tirr tiry titi titt tiyi tlli tri- trib tril trit trtr try- tryb ttbb tttt ttyl tybi tyir tyl- tyll tyr- tyrl tyrr tyti tytt tyty ybry yili yill yilt yirb yirr yiti ylli yrly yyyy