bbbb bbdd bbdo bblb bbpr bd-r bdii bibb bibi bibl bibo bidi bido bidr bild bili bill bilo bilt bio- bioi biol biot bipp birb bird biri birl biro birr birt bitd bito bitt blbt bldr blio blip blir blit blob blod bloo blop blot bobb bobi bobo bodb bodi bodo boi- boid boii boil boit bold boli boll bolo bolt boob bood bool boop boor boot bopp bor- bord bori boro borr bort botb botd boti boto bott bpot bprd bpti brdo brdt brid bril brio brit brlp brob brod brol broo bror brot brrr btbp btdt btlp btob btor btrt bttb d-bo dbit dblp dbpd dbtt dddd ddot ddpo dibb dibo dibp didi dido diii dili dill dilo diol diop dior diot dipl dipo dipp dipt dird dirl dirr dirt diti dito ditt dlbd dlib dlii dlil dlit dobb dobi dobl dod- dodd dodi dodo doid doil doit dold doli doll dolo dolp dolt doob dood dool doop door doot dopo dopp dopr dopt dord dori doro dorp dorr dort dotd doti doto dott dpdt dpll drib dril drip drit drob drod drol drop drot dtdp dtor dtot dtpl dtrl dttp ibdo ibid ibot ibrd ibri ibro ibtb ibtl iddo idid idil idio idir idli idol idro idtp iiii iiio iiit iioi iioo iiop iitr iitt ilio ilir ilit ill- illd illi illo illp illt iloo ilot ilpr iobi iod- iodd iodo ioii ioio ioit iolo iooi iooo iopl iori ioto ipdi ipid ipil iplo ipod ipop ippo ippr ipri ipto irbp irdo irdp iri- irid iril irio irip irlb irob irod irop irri irti irtp itdo itil itll itoi itol itoo itor itri itto lblr lbrt lddp libo libr lidb lidl lido liii liir lilb lili lill lilo lilt lio- liod lior lip- lipb lipi lipl lipo lipp lird liri lirl liro lirp lirr lirt litb litd liti litl lito litr litt lldb lldp llll llod lloo lob- lobb lobi lobo lodi loid loir loit lold loli loll lolo loob lood lool loop loor loot lopi lopp lord lori loro lotd loti lotl loto lotr lott lpod lppl lprp lptb lrdd lroi lrrr ltbl ltib lttr obbo obdt obid obit oboi obol obor obot obri obro obtd odbo oddd oddi odio odir odoo odop odor odot odrl odrp oido oiii oirt oiti olbo oldb olib olid olio olit olli ollo olor olot oobi oodi ooid oold oolo oooo oord oort ootb ootp opii opio opit opo- opor oppi oppo opti opto orbb orbi orbo ordo ori- orid oril orio orit orlo oro- oror orot orpi orri orro orto otbd otit oto- otoo otor otpp otro otti otto pbil pdpr pibb pibi pido piip pil- pild pili pill pilo pilt piob piot pipi pipo pipp piri pirl piro pirr piti pito pitr pitt plbr pldt plib plid plio plip plit plob plod ploo plop plot plpp plri pltt pobo pod- podd podi podo poid poil poio pold poli poll polo polt pood pool poop poor poot pop- popi popo popp popt porb pori poro porr port potd poti poto pott ppib ppid ppli pplo ppod pppd pppo pppp pptt pri- prid prii prlr pro- prob prod prol proo prop prot prpd prrd prri prti prtp prtr ptbl ptld ptol ptop ptpd ptrd rbbb rbbr rdbp rdio rib- ribo ridd ridi rido rill rilo rilp riol riot ripd ripi ripl ripp ripr ript riri riti ritl rito ritt rldt rob- robb robi robo robt rodd rodi rodo roid roil roio roir roit rold roll rolo rolp rolt roob rood rooi rool roop roor root ropo rori roro rort roti rotl roto rotr rott rpdp rpii rpob rptd rrrr rtdt rtlt rttp tbil tbit tbrb tbtp tddb tdil tdor tdri tibi tidd tiit tild till tilo tilr tilt tiop tip- tipi tipo tipp tipt tirb tird tiri tirl tiro tirr titi tito titp titt tldp tldr tlli tobi tobo tobt todd todi todo todt toid toil toit tol- told toli toll tolo tolt tood tool toor toot top- topd topi topo topp topt tord tori toro torp torr tort totd toti toto totr tott tpir tpld tpol tppd tppp tppr tptp tptr tri- trib tril trio trip trit trod troi troo trop trot trpp trtr ttbb ttop tttt