-er bbb bbc bbe bbh bbo bbr bcb bcc bce bch bco bcr bcz be- beb bec bee beh beo ber bez bhb bhc bhe bhh bho bhr bob boc boe boh boo bor boz brb bre brh bro brr brz bze bzh bzo bzr bzz c-- cbb cbc cbe cbh cbo cbr cbz ccb ccc cce cch cco ccr ccz ce- ceb cec cee ceh ceo cer cez ch- chb chc che chh cho chr chz co- cob coc coe coh coo cor coz crb crc cre crh cro crr crz cz- czc cze czo ebb ebc ebe ebh ebo ebr ec- ecb ecc ece ech eco ecr eeb eec eee eeo eer ehb ehc ehe ehh eho ehr eo- eob eoc eoe eoh eoo eor erb erc ere erh ero err erz eze ezh ezo ezr ezz hbb hbc hbe hbh hbo hbr hbz hcb hcc hce hch hco hcr he- heb hec hee heh heo her hez hhb hhc hhe hhh hho hhr hhz hob hoc hoe hoh hoo hor hr- hrb hrc hre hrh hro hrr hrz hze hzo ob- obb obc obe obh obo obr oc- ocb occ och oco ocr ocz oeb oec oee oeh oeo oer ohc ohe ohh oho ohr oo- oob ooc ooh ooo oor or- orb orc ore orh oro orr orz oze ozo ozz rbb rbc rbe rbh rbo rbr rcb rcc rce rch rco rcr re- reb rec ree reh reo rer rez rh- rhb rhc rhe rhh rho rhr rob roc roe roh roo ror roz rrb rrc rrh rrr rzb rze rzo zbb zbc zbr zce zco zeb zec zee zeh zeo zer zez zhc zhe zho zhr zo- zob zoc zoe zoo zor zrh zro zzr zzz

bbbb bbch bbeb bbrc bcbc bccc bcec bcer bche bcor bcoz bebb bebe bebo bech beeb beer behr beo- beor berc bere bero berr beze bhcc bher bhor bobb bobe bobo boce boch boco boec boee boeo boer boho bohr boob booc booe booh boor booz bor- bore borh boro borr borz bozo brcb brce breb brec bree breo brer brez brob broc broe broh broo bror broz brrr bzer bzoe bzzz c-bo cbbc cbcc cbce cbcr cbec cbee cber cbre cbrh ccbc cccb cccc ccee cche cchr ccob ccoc ccrc ccre cec- cece ceco ceeb ceec ceor cer- cerc cere cero ceze chce chch cheb chec chee cheh cher chez choc choh choo chor chrb chrc chro chrr cobb cobe cobh cobo coce coch coco coho coob cooh cor- corb corc core coro corr coze cozz crbc crcc crce crcr crcz cre- creb crec cree creh creo crob croc croe croh croo cror croz ebbc ebbo ebbr ebcc eber eboe eboo ebor ebro ecbc ecbe eccb eccc ecce ecco eche echo eco- ecrc ecrr eeee eeoc eerc eero eeze ehcc eheh eher ehre eore erbb erbe ercc erce erch ereb erec erer erez erhc erob eroc eroe eroo errc erre erro ezer ezzo hboc hcbc hccb hccc hcch hebb hebe hebo hebr hech heeb heer hehe heho heor herb herc here hero herr herz heze hhhh hobe hobo hoce hoch hocr hoer hohe hoho hooe hoor horc hore horo horr hoze hozo hree hrob hrrc o-eo obbo obec ober oboe obor obre obrh obro ocbc occc oce ocee oche ocre ocro ocrr oec- oecc oeec oere ohbe ohcc ohee oher ohho ohob ohoh ohre oobe oocr ooer ooho oooh oooo oore ooze orbb orbe orbo orce orch orco ore- oreb orec oreh oreo orer orhe oro- oroe oror oroz orro orzo ozee ozer rbbb rbbr rboh rcbc rcbo rccb rccc rchb rebb rebe rebo recc rece rech recr recz reeb rehb rehe rere rero reze rezh rhce rheb rhee rheo rhob rhoc rhoh rob- robb robe robo rocc roce roch roco roer rohe rohr roob roor rooz rorc rore roro roze rozz rrrr z-ro zber zebe zech zero zeze zhee zhob zhor zobo zoch zoco zohr zoo- zorb zorc zore zoro zozo zrce zrze zzhz zzzz

bbbee be-er be-ro beber becco beche becho beebe beech beez beher berbe berec bereh berhe berob beroe beror berre berze berzo bezer bheer bhore bo-bo bo-ho boboc bobr bobre bocce boche bocho bocor boece boero bohor booce booch booco booer boore booze borbo borce borch borcz borec boree borer boro- boroo borre borro bozer bozoo brece brech breer breo- breoc brere breze brobo broce broch broer broze brrrr c-cor ccccc cebec ceber cech ceche ceco- ceere ceoce ceoor cerc- cerce cerco cerec cerer cero- ceroc cerre cerro chech cheer cheez cheho chehr cheo chere chero cheze chher chobe choco choor chooz chor- chore choro co-bo co-co cobbe cobre cocc- cocce cocco coceo coche cohee cohob cohoe cohoo cooch cooee cooer coore cooze corbe corbo corce core- coree corer coro- corre corze corzo cozhe cozzo crebe crece creer creo- croce croco crooe crore croze czech ebber eboch eccho eeeee eocho eorre erbbe erber erech erere eroor erore error ezbob h-cho h-e-b hcooh he-he he-ro hebbe hebe- heber hecco heche heere heeze heore herce herez heroe herre herro hezbo hhhhh ho-ho ho-oh hoboe hobor hobro hocco hoche hohoe hooce hooch hooer hoore hooze horce horch horeb horhe horre horro horze hreoc hrere hroch o-r-b obecz obhor oboro obreb obrez obzor ocher ochoz ochre ochro ocoee ocr-b ocree oeco- oh-oh ohchr ohrob oo-er oocre ooher ooooh ooooo orbec orech oreco oreo- orere orero orobe orobo oroch oroco oroer ozero ozoro r-co- rebbe rebec reber recce recco reche reece reech reere reerh reeze rehco reher rehoe rere- reree rerez rerob rezzo rheo- rhoeo ro-ro robbe robbo robec rober robo- robor rocco roche rocor roero rohob rooer roore rorer rozce zboze zebec zebre zecco zeebo zeero zeher zerbe zerbo zerco zeroc zeror zerre zober zocco zocor zohor zohzc zorbo zorch zorro zzzzz

b-zero bbbbbb becher beebee beerze beezer behror berbee berbeo berber berceo berche berere berrer bo-hoo bobber bocche boccob bochco bocher bochor boeber boerre bohero boober booboo booher boohoe boohoo boozer borbor borche borore bororo