-er bbb bbe bbi bbk bbo bbr be- beb bee bei bek beo ber bi- bib bie bii bik bio bir bkb bke bkk bko bkr bob boe boi bok boo bor brb bre bri brk bro brr ebb ebe ebi ebk ebo ebr eeb eee eek eeo eer eib eie eii eik eio eir ekb eke eki eko ekr eo- eob eoe eoi eok eoo eor erb ere eri erk ero err ibb ibe ibi ibk ibo ibr ie- iee iei iek ier iib iie iii iio iir ikb ike iki ikk iko ikr io- iob ioe ioi ioo ior ir- irb ire iri irk iro irr kbb kbe kbi kbk kbo kbr ke- keb kee kei kek keo ker kib kie kii kik kio kir kkb kke kki kkk kkr kob koe koi kok koo kor kri krk kro krr o-i ob- obb obe obi obk obo obr oeb oee oei oeo oer oib oie oii oik oio oir okb oke oki okk oko okr oo- oob ooi ook ooo oor or- orb ore ori ork oro orr rbb rbe rbi rbk rbo rbr re- reb ree rei rek reo rer rib rie rii rik rio rir rkb rke rkk rko rob roe roi rok roo ror rrb rri rrk rrr

bbbb bbeb bebb bebe bebi bebo beeb beek beer beik beir beke beki beko beo- beok beor bere beri berk bero berr bibb bibe bibi bibo bieb bier bike biko bio- bioi birb bire biri birk biro birr bobb bobe bobi bobo boee boeo boer boi- boie boii boke boki boko boob booe book boor bor- bore bori bork boro borr breb bree brei brek breo brer brie brik brio brkb brob broe brok broo bror brrr ebbo ebbr eber eboe eboo ebor ebro eeee eeke eero eiei eier eike eiki eiko eire ekeb ekek eker ekki ekoi eoir eore eori erbb erbe ereb erei erer erie erik erio erke erki erob eroe eroi eroo erre erro i-be ibie ibri ibro ieie ieio iere ieri iiie iiii iiio iioi iioo ikee iker ikki ikko ikoo ikri iobi ioee ioii ioio ioke ioko iooi iooo iore iori irbe iree irer iri- irie irio irki irob irre irri kbbb kbbe kbbi kbbk kbbo kbbr kbeb kbee kbek kbeo kber kbib kbie kbik kbio kbkb kbkk kbko kbkr kbob kboe kboi kbok kboo kbrb kbre kbri kbrk kbro kebb kebe kebi kebr keek keer keib keii keik keio keir kekb keke keki keko keok ker- kerb kere keri kerk kero kerr kibb kibe kibi kibo kibr kier kiii kiik kiki kikk kiko kikr kioe kioi kiok kioo kirb kiri kirk kiro kirr kkbb kkbe kkbi kkbo kkbr kkik kkkk kkob kkoo kkor kkrb kkre kkrk kkro kkrr kobb kobe kobi kobk kobo kobr koei koii koir kokb koke koki kokk koko kokr koob kooi kook kooo koor korb kore kori kork koro korr krbb krbe krbi krbk krbr kreb kree krei krek kreo krib krik krio krke krki krkk krko krkr krob kroe kroi krok kroo kror krrb krre krri krrk krro krrr o-eo obbo ober obie obkb oboe oboi obok obor obre obri obro oere oier oiii oike oiko oire oker okie okir okko okok okor okre okro oobe oobi ooer oooo oore orbb orbe orbi orbo ore- oreb orek oreo orer ori- orie orio orke orko oro- oroe orok oror orri orro rbbb rbbr rebb rebe rebk rebo reeb reek reii reik reir reke reki reko rere reri rero rib- ribe ribo riek rier rike riki rikk rire riri rob- robb robe robi robo roer roik roio roir roke roki rokk roko rokr roob rooi rook roor rore rori rork roro rrrr

b-r-k bbbee bbook be-er be-ro bebek beber beebe beeke beeri beibi beier beire beker bekir bekke bekko bekok beoir berbe berei berek berie berio berk- berke berko berob beroe berok beror berre berri bibbe bibbo biber bibie bibio bibri biebe bieke biere bieri biker bikie bikok bioko biore birie bo-bo bobbi bobek bobik bobko bobok bobr bobre bobri boeke boero boibe boier boire boiro bokeo boker bokie bokko bokok bokor booer booke booki booko boore borbo boree borek borer borik borio borko boro- borok boroo borre borro breek breer breik breke breo- brere bribe brier brike brobo broek broer broke brook brrrr ebber ebbie ebeko ebibe ebike ebook ebrio eeeee eerie eerik eieio eiker eirie ekbir ekeko ekker eorre erbbe erber erere erier erio- erkki erkko eroor erore error i-beo ibero ibibo iboke ibook ibore ibrik ieiri ierei ieroe iiiee iiiii ikbke ikire ikobo ikoro ioooi ioooo iorio iriki irker irobo iroko irori k-rob kebbe kebek keber kebir kebob keere keeri keiki keiko keire keiri kekri keori kerei kerek kerie kerik kerio kerre kerri kibbe kibbi kibbo kibei kibi- kiboe kibor kieke kiiki kikki kikko kikoi kioko kiore kirie kirke kirki kiroe kirre ko-ko kobee kober kobri koeri koike koiri kokei koker kokir kokki kokko kokoi kokor kokre kooki koori korbe korbo korei korek korke korki koror korri korro kre-o kreek kreke kreki kreo- kribi kriek krier krike kroke o-r-b obeie oboro obreb obrok oeiro oerik oiko- okeke okere okiek okker okkie okobo okoki okoro oo-er ooioo ooooo oorie orebi oreo- oreoi orere orero oribe oribi orobe orobo oroer oroke rebbe reber reere reiek reike reiki reiko rekke rere- reree rerik rerir rerob ribbi riber ribie ribo- rikei riker rikki ririe ro-ro robbe robbi robbo rober robie robik robo- robor roero rokee roker rokke rokki rokkk rooer rooke roore rorer rorik rorke

bbbbbb bebook beebee beeker beiber bekker bekoor bekoro berbee berbeo berber bereke bereko berere berker berrer berrie bibber bibiri bibrik bieber bikker bikoro biobor biribi birkie birori bobber bobbie bobbio bobeke bobiri bobrek bobrok boeber boerre bokere bokoro boober boobie booboo booker bookie bookii borbor borebi borier boriki boroko borore bororo breere brekke bribe- bribee briber bribir bribri brikke broker brokke brokkr brooke e-bike e-book ebr-ii ebrie eebree eerier ekero erbree errori i-bere ibero- ibibio ier-oe ierror iiooio ikkeri ikoiko irereo kebber kebbie kebero