-er -up b-p b-u bbb bbe bbk bbo bbp bbr bbu be- beb bee bek beo bep ber beu bkb bke bkk bko bkp bkr bob boe bok boo bop bor bou bpb bpe bpo bpp bpr bpu brb bre brk bro brp brr bru bub bue buk buo bup bur buu ebb ebe ebk ebo ebp ebr ebu eeb eee eek eeo eep eer ekb eke eko ekp ekr eku eo- eob eoe eok eoo eop eor eou ep- epb epe epo epp epr epu erb ere erk ero erp err eru eu- eub eue eup eur kbb kbe kbk kbo kbp kbr kbu ke- keb kee kek keo kep ker kkb kke kkk kkp kkr kku kob koe kok koo kop kor kou kpe kpk kpo kpp kpr kpu krk kro krp krr kru kub kue kuk kup kur kuu ob- obb obe obk obo obp obr obu oeb oee oeo oep oer okb oke okk oko okp okr oku oo- oob ook ooo oop oor op- opb ope opk opo opp opr or- orb ore ork oro orp orr oru ou- oue ouk ouo oup our p-p pbb pbe pbk pbo pbp pbr pbu peb pee pek peo pep per peu pkb pke pko pkp pkr pku pob poe pok poo pop por pou ppb ppe ppk ppo ppp ppr ppu prb pre prk pro prp prr pru pub pue puk pup pur puu rbb rbe rbk rbo rbp rbr rbu re- reb ree rek reo rep rer reu rkb rke rkk rko rkp rku rob roe rok roo rop ror rou rpb rpe rpk rpo rpp rpr rpu rrb rrk rrp rrr rru rub rue ruk ruo rup rur ruu ubb ube ubk ubo ubp ubr ubu ueb uee uep uer ukb uke ukk ukp ukr uku uob uoe uok uoo uop uor up- upb upe upk upo upp upr upu ur- urb ure urk uro urp urr uru uue uur uuu

bbbb bbeb bbpr bebb bebe bebo beeb beek beep beer beke beko beo- beok beor bepo bere berk bero berr beru beuk beur bkpr bobb bobe bobo bobu boee boeo boep boer boke boko boku boob booe book boop boor bope bopp bor- bore bork boro borr boru boue bouk boup bour bpoe breb bree brek breo brep brer brkb brob broe brok broo bror brou brrr brue brup bubb bube bubo bubu buer bueu buke bukk buko buku bur- burb bure burk buro burp burr buru ebbo ebbr eber eboe eboo ebor ebpo ebro ebru ebur eeee eeke eero ekeb ekek eker ekpe ekpo ekur eore epee eper epor eppo eppp eprb epro eprp epub erbb erbe ereb erer erke erob eroe eroo erpe erre erro erub erur euer eur- eure euro kbbb kbbe kbbk kbbo kbbr kbbu kbeb kbee kbek kbeo kber kbkb kbkk kbko kbkr kbob kboe kbok kboo kbpe kbpk kbpo kbpr kbpu kbrb kbre kbrk kbro kbru kbub kbue kbuk kbup kbur kbuu kebb kebe kebr kebu keek keep keer kekb keke keko keku keok kep- kepe kepu ker- kerb kere kerk kero kerp kerr keru keup keur kkbb kkbe kkbo kkbr kkkk kkob kkoo kkor kkpk kkrb kkre kkrk kkro kkrr kkup kkuu kobb kobe kobk kobo kobr kobu kokb koke kokk koko kokp kokr koku koob kook kooo koop koor koou kopb kope kopp kopr kopu korb kore kork koro korr koru koub koue kour kouu kpbb kpbe kpbr kpek kper kpke kpkk kpkr kpob kpoe kpok kpoo kpop kpou kppk kppo kppp kppr kprb kpre kprk kpro kprp kprr kpru kpub kpur krbb krbe krbk krbr kreb kree krek kreo kreu krke krkk krko krkr krku krob kroe krok kroo krop kror krpr krpu krrb krre krrk krro krrr krue kruk krup krur kubb kube kubo kubr kubu kuek kueu kuke kukk kuku kuok kuoo kuop kupb kupe kupr kupu kurb kure kurk kuro kurr kuru kuub kuuk kuur kuuu o-eo obbo ober obkb oboe obok obor obre obro oere oker okko okok okor okpe okpo okre okro okur oobe ooer ooku oooo oore opep oper opo- opor oppo orbb orbe orbo orbu ore- oreb orek oreo orer orke orko oro- oroe orok oror orpe orro orub orup ouer oupe our- oure ouro ouu- pbpk peek peep peer peke pekk peko peor peou pepe pepo per- pere perk pero perp perr peru peur pobo poer poke poko poku pook poop poor pop- pope popo popp porb pore pork poro porr pouk poup pour pper pppo pppp ppru ppur pre- preb pree prek prep preu pro- prob proe proo prop prou prue pruu pu-e pube pubu pueo puer pueu puke puku pupe pupu pur- purb pure puro purp purr puru rbbb rbbr rebb rebe rebk rebo rebu reeb reek reep reke reko reop reou repe repo repp repr repu rere rero reru reue reuk reup reuu rob- robb robe robo robu roer roke rokk roko rokr roku roob rook roop roor rope ropo rore rork roro roru roub roue rouk roup rpob rpoe rrrr rubb rube rubp rubu ruer ruke rukk ruku ruok rupe rupp rure ruro rurp ruru u-rp ubbe ubbo ubek uber ukek ukeu ukko ukok ukup ukur uoke uor- uore upbe upor uppe uppp uppu upup urbe ure- urke uro- urok uroo urpo urre uruk urup urur uuuu

b-r-k bbbee bbook be-er be-ro bebek beber bebop beebe beeke beker bekke bekko bekok beour bepop beppe beppo beppu berbe berek berk- berke berko berob beroe berok beror berre berru beuer beure bo-bo bobek bobko bobok bobr bobre bobup boeke boero boeur bokeo boker bokko bokok bokor booer booke booko boore booru borbo boree borek borer borko borku boro- borok boroo borou borre borro borup bouee bouer bouke bouko boure brebu breek breer breke breo- brere breu- brobo broek broer broke brook broue brouk brrrr bruer bruke bubbe buber buker bukk- bukor burek burke buroo burro burru buruk e-pro ebber ebeko ebook eboue ebure eeeee eepee ekeko ekker ekuku ekuru eorre epuku epure erbbe erber erere