-er b-u bbb bbc bbd bbe bbh bbn bbr bbu bcb bcc bcd bce bch bcn bcr bcu bdb bdc bdd bde bdh bdr bdu be- beb bec bed bee beh ben ber beu bhb bhc bhd bhe bhh bhr bhu bnb bnc bnd bne bnn bnr bnu brb brd bre brh brn brr bru bub buc bud bue buh bun bur buu c-- cbb cbc cbd cbe cbh cbn cbr cbu ccb ccc ccd cce cch ccn ccr ccu cdb cdc cdd cde cdh cdn cdr cdu ce- ceb cec ced cee ceh cen cer ceu ch- chb chc chd che chh chn chr chu cn- cnb cnc cnd cne cnh cnn cnr cnu crb crc crd cre crh crn crr cru cub cuc cud cue cuh cun cur cuu dbb dbc dbd dbe dbh dbn dbr dbu dcb dcc dcd dce dcn dcr dcu ddb ddc ddd dde ddh ddn ddr ddu de- deb dec ded dee deh den der deu dh- dhb dhc dhd dhe dhh dhr dhu dnb dnc dnd dne dnh dnn dnr drb drc drd dre drn drr dru dub duc dud due duh dun dur ebb ebc ebd ebe ebh ebn ebr ebu ec- ecb ecc ecd ece ech ecn ecr ecu ed- edb edc edd ede edh edn edr edu eeb eec eed eee een eer ehb ehc ehd ehe ehh ehn ehr ehu en- enb enc end ene enh enn enr enu erb erc erd ere erh ern err eru eu- eub euc eud eue eun eur hbb hbc hbd hbe hbh hbn hbr hbu hcb hcc hcd hce hch hcn hcr hdb hdc hdd hde hdh hdn hdr hdu he- heb hec hed hee heh hen her heu hhb hhc hhd hhe hhh hhn hhr hhu hnb hnc hnd hne hnh hnn hnu hr- hrb hrc hrd hre hrh hrn hrr hru hub huc hud hue huh hun hur huu nbb nbc nbd nbe nbn nbr nbu ncb ncc ncd nce nch ncn ncr ncu ndb ndc ndd nde ndh ndn ndr ndu ne- neb nec ned nee neh nen ner neu nhb nhc nhd nhe nhh nhn nhr nhu nnb nnc nne nnh nnn nnu nrb nrc nrd nre nrn nrr nru nub nuc nud nue nuh nun nur nuu rbb rbc rbd rbe rbh rbn rbr rbu rcb rcc rcd rce rch rcn rcr rcu rdb rdc rdd rde rdh rdn rdr rdu re- reb rec red ree reh ren rer reu rh- rhb rhc rhd rhe rhh rhn rhr rhu rnb rnc rnd rnh rnn rnr rnu rrb rrc rrd rrh rrn rrr rru rub ruc rud rue ruh run rur ruu ubb ubc ube ubh ubn ubr ubu ucb ucc ucd uce uch ucn ucr ucu udb udc udd ude udn udr udu ueb uec ued uee ueh uen uer uhb uhc uhd uhe uhh uhr uhu un- unb unc und une unh unn unr unu ur- urb urc urd ure urn urr uru uuc uue uun uur uuu

-ene bbbb bbch bbdd bbeb bbrc bcbc bccc bcde bcec bcer bchd bche bcnu bcru bcuc bd-r bdbc bddc bddh bebb bebe bech becu bede bedu beeb beed been beer behn behr bend bene benn benu berc berd bere bern berr beru beur bhcc bher bhur bhuu bner bnrr brcb brce breb brec bred bree bren brer brrr bruc brud brue bruh brun bubb bube bubu bucc buce buch bucu budb budd bude budu buen buer bueu buhe buhr bunb bund bune bunn bunu bur- burb burd bure burh burn burr buru c-cd cbbc cbcc cbce cbcn cbcr cbcu cbdb cbdc cbdn cbec cbee cber cbnd cbrd cbre cbrh cbrn ccbc ccbn cccb cccc cccu ccdc ccdh ccdn ccdr cced ccee cche cchr ccnb ccnc ccne ccnr ccnu ccrc ccre ccuc cd-e cd-r cddb cddr cdec cder cdnb cdnc cdre cebu cec- cece cedd cede cedu ceeb ceec cen- cend cene cer- cerc cerd cere cern chce chch cheb chec ched chee cheh chen cher cheu chnb chnc chnr chrb chrc chrd chrn chrr chub chud chun chur cnbc cndd cnrc cnrr crbc crbu crcc crce crcr crdc cre- creb crec cred cree creh cren creu crne crub crud crue crun cub- cubb cube cucc cuce cucn cude cued cuer cund cune curb curd cure curn curr dbcc dbrn dcbc dccb dccc dccu dcdb dche dddd ddrc ddre ddub debe debu dec- decc decd dece dedd dede dedu deeb deed deen deer dehn dehu dene denn denu der- derb derc dere dern derr deue deur dhec dhed dhee dher dhrn dhun dhur dnce dner dnrc drbc dred dree dreh dren drnh drub drue druu dub- dubb dubc dube dubh dubu duce duch dudd dude dudu duer duhe duhr duhu dunc dune dunn dure durn duru duur ebbc ebbr ebcc ebed eben eber ebru ebur ecbc ecbe eccb eccc ecce ecdc eced eche ecne ecrc ecrr ecru eddc edde ede- edeh eden eder edrn edru educ edun edur eede eedu eeee eend eerc ehcc ehdd eheh ehen eher eheu ehre ehud enb- enbn enbr ence ench end- ende endh endu ened enee ener ennc enne ennu enue enur erbb erbe ercc erce erch erde ereb erec ered eren erer erhc erhu erne errc erre erub eruc eruh erur eubc eucd euch eude euer eur- eurc eure hbcd hcbc hccb hccc hcch hcdr hcrd hebb hebe hebr hech hedd hede heeb heed heer hehe hehn hend hene henh henn henu herb herc herd here hern herr heru heue heun heur hhhh hnce hndd hrdc hrdn hree hrrc hrud hrun hubb hube huch hucu hudd hude hudu hued huer huhn huhu hunc hund hune hunh hurd hure hurn hurr huru huub nbbc nbcc nber nbhd ncbc nccc nccn nccr nccu ncdc ncdn ncdr ncdu ncec nced ncee ncen ncer nchc nchd ncnc ncnd ncrc ncre ncue ndcc nddb ndde nder ndrc ndre nebb nebe nebn nebr nebu necc nece nech necr nedc nedd nede nedu neeb need neen neer nehe