-er -up b-p b-u bbb bbe bbk bbo bbp bbr bbt bbu be- beb bee bek beo bep ber bet beu bkb bke bkk bko bkp bkr bkt bob boe bok boo bop bor bot bou bpb bpe bpo bpp bpr bpt bpu brb bre brk bro brp brr brt bru btb bte btk bto btp btr btt btu bub bue buk buo bup bur but buu ebb ebe ebk ebo ebp ebr ebt ebu eeb eee eek eeo eep eer eet ekb eke eko ekp ekr ekt eku eo- eob eoe eok eoo eop eor eot eou ep- epb epe epo epp epr ept epu erb ere erk ero erp err ert eru etb ete etk eto etp etr ett etu eu- eub eue eup eur eut k-t kbb kbe kbk kbo kbp kbr kbu ke- keb kee kek keo kep ker ket kkb kke kkk kkp kkr kkt kku kob koe kok koo kop kor kot kou kpe kpk kpo kpp kpr kpt kpu krk kro krp krr krt kru ktb kte ktk kto ktp ktr ktt ktu kub kue kuk kup kur kut kuu ob- obb obe obk obo obp obr obt obu oeb oee oeo oep oer oet okb oke okk oko okp okr oku oo- oob ook ooo oop oor oot op- opb ope opk opo opp opr opt or- orb ore ork oro orp orr ort oru ot- otb ote otk oto otp otr ott otu ou- oue ouk ouo oup our out p-p pbb pbe pbk pbo pbp pbr pbt pbu peb pee pek peo pep per pet peu pkb pke pko pkp pkr pkt pku pob poe pok poo pop por pot pou ppb ppe ppk ppo ppp ppr ppt ppu prb pre prk pro prp prr prt pru pt- ptb pte ptk pto ptp ptr ptt ptu pub pue puk pup pur put puu rbb rbe rbk rbo rbp rbr rbt rbu re- reb ree rek reo rep rer ret reu rkb rke rkk rko rkp rkt rku rob roe rok roo rop ror rot rou rpb rpe rpk rpo rpp rpr rpt rpu rrb rrk rrp rrr rrt rru rtb rte rtk rto rtp rtr rtt rtu rub rue ruk ruo rup rur rut ruu tbb tbe tbk tbo tbp tbr tbt tbu te- teb tee tek teo tep ter tet teu tkb tke tkk tko tkp tkr tkt to- tob toe tok too top tor tot tou tpb tpe tpk tpo tpp tpr tpt tpu trb tre trk tro trp trr trt tru ttb tte ttk tto ttp ttr ttt ttu tub tue tuk tuo tup tur tut tuu ubb ube ubk ubo ubp ubr ubt ubu ueb uee uep uer uet ukb uke ukk ukp ukr uku uob uoe uok uoo uop uor uot up- upb upe upk upo upp upr upt upu ur- urb ure urk uro urp urr urt uru utb ute utk uto utp utr utt utu uue uur uut uuu

bbbb bbeb bbet bbpr bebb bebe bebo beeb beek beep beer beet beke beko beo- beok beor beot bepo bere berk bero berr bert beru bete beto bett betu beuk beur bkpr bkpt bobb bobe bobo bobu boee boeo boep boer boet boke boko boku boob booe book boop boor boot bope bopp bor- bore bork boro borr bort boru botb bote boto bott boue bouk boup bour bout bpoe bpot breb bree brek breo brep brer bret brkb brob broe brok broo bror brot brou brrr brue brup brut btbp btek btob btor btrt bttb bubb bube bubo bubu buer bueu buke bukk buko buku bur- burb bure burk buro burp burr burt buru but- bute buto butt ebbo ebbr eber eboe eboo ebor ebpo ebro ebru ebur eeee eeke eero eete eetu ekeb ekek eker eket ekpe ekpo ekur eore eoto epee eper epor epot eppo eppp eprb epro eprp epte epub erbb erbe ereb erer eret erke erob eroe eroo erpe erre erro ertu erub erur etbr etee eter etoe etok etre etro ette etto ettu euer eur- eure euro eurt kbbb kbbe kbbk kbbo kbbr kbbt kbbu kbeb kbee kbek kbeo kber kbet kbkb kbkk kbko kbkr kbob kboe kbok kboo kbot kbpe kbpk kbpo kbpr kbpt kbpu kbrb kbre kbrk kbro kbrt kbru kbtb kbte kbtk kbto kbtr kbtt kbub kbue kbuk kbup kbur kbut kbuu kebb kebe kebr kebt kebu keek keep keer keet kekb keke keko keku keok kep- kepe kept kepu ker- kerb kere kerk kero kerp kerr kert keru ket- kete ketk keto ketp ketr kett ketu keup keur kkbb kkbe kkbo kkbr kkbt kkkk kkob kkoo kkor kkot kkpk kkpt kkrb kkre kkrk kkro kkrr kkrt kktk kktu kkup kkut kkuu kobb kobe kobk kobo kobr kobu kokb koke kokk koko kokp kokr koku koob kook kooo koop koor koot koou kopb kope kopp kopr kopt kopu korb kore kork koro korr kort koru kotb kote kotk koto kotr kott kotu koub koue kour kout kouu kpbb kpbe kpbr kpek kper kpet kpke kpkk kpkr kpob kpoe kpok kpoo kpop kpou kppk kppo kppp kppr kprb kpre kprk kpro kprp kprr kprt kpru kpte kpto kptr kptt kpub kpur krbb krbe krbk krbr krbt kreb kree krek kreo kret kreu krke krkk krko krkr krku krob kroe krok kroo krop kror krpr krpt krpu krrb krre krrk krro krrr krrt krtk krto krtr krue kruk krup krur ktbb ktbr ktbt ktbu ktee ktek ktep ktkb ktke ktkk ktko ktkr ktkt ktku ktob ktoe ktok ktoo ktop ktor ktot ktpk ktpo ktpr ktpt ktrb ktre ktrk ktro ktrp ktrr ktrt ktru kttk ktto kttp kttr kttt kttu ktub kubb kube kubo kubr kubu kuek kueu kuke kukk kuku kuok kuoo kuop kupb kupe kupr kupt kupu kurb kure kurk kuro kurr kurt kuru kute kuto kutp kutr kutt kutu kuub kuuk kuur kuuu o-eo obbo ober obet obkb oboe obok obor obot obre obro oere oker oket okko okok okor okot okpe okpo okre okro