-er b-u bbb bbe bbf bbh bbn bbo bbr bbs bbu be- beb bee bef beh ben beo ber bes beu bfb bfe bff bfh bfn bfo bfr bfs bfu bhb bhe bhf bhh bho bhr bhs bhu bnb bne bnf bnn bno bnr bns bnu bob boe bof boh bon boo bor bos bou brb bre brf brh brn bro brr brs bru bsb bse bsf bsh bsn bso bsr bss bsu bub bue buf buh bun buo bur bus buu ebb ebe ebf ebh ebn ebo ebr ebs ebu eeb eee eef een eeo eer ees ef- efb efe eff efh efo efr efs ehb ehe ehf ehh ehn eho ehr ehs ehu en- enb ene enf enh enn eno enr ens enu eo- eob eoe eof eoh eon eoo eor eos eou erb ere erf erh ern ero err ers eru es- esb ese esf esh esn eso esr ess esu eu- eub eue euf eun eur eus fbb fbe fbf fbh fbn fbo fbr fbs fbu feb fee fef feh fen feo fer fes feu ffe fff ffh ffn ffo ffr ffs ffu fhb fhe fhf fhh fhn fho fhr fhs fnb fne fnf fnh fnn fnr fns fnu fob foe fof foh fon foo for fos fou frb fre frf frh frn fro frr frs fru fsb fse fsf fsh fsn fso fsr fss fsu fub fue fuf fun fuo fur fus fuu hbb hbe hbf hbh hbn hbo hbr hbs hbu he- heb hee hef heh hen heo her hes heu hfb hfe hff hfh hfn hfo hfr hfs hfu hhb hhe hhf hhh hhn hho hhr hhs hhu hnb hne hnf hnh hnn hno hns hnu hob hoe hof hoh hon hoo hor hos hou hr- hrb hre hrf hrh hrn hro hrr hrs hru hsb hse hsf hsh hsn hsr hss hsu hub hue huf huh hun huo hur hus huu nbb nbe nbf nbn nbo nbr nbs nbu ne- neb nee nef neh nen neo ner nes neu nfb nfe nff nfn nfo nfr nfs nfu nhb nhe nhf nhh nhn nhr nhs nhu nnb nne nnf nnh nnn nno nns nnu no- nob noe nof noh non noo nor nos nou nrb nre nrf nrn nro nrr nrs nru nsb nse nsf nsh nsn nso nsr nss nsu nub nue nuh nun nuo nur nus nuu ob- obb obe obf obh obn obo obr obs obu oeb oee oef oeh oen oeo oer oes of- ofb ofe off ofn ofo ofr ofs ofu ohe ohf ohh ohn oho ohr ohs ohu on- onb one onf onh onn ono onr ons onu oo- oob oof ooh oon ooo oor oos or- orb ore orf orh orn oro orr ors oru os- osb ose osf osh osn oso osr oss osu ou- oue ouf ouh oun ouo our ous rbb rbe rbf rbh rbn rbo rbr rbs rbu re- reb ree ref reh ren reo rer res reu rfb rfe rff rfh rfn rfo rfr rfs rfu rh- rhb rhe rhf rhh rhn rho rhr rhs rhu rnb rnh rnn rno rnr rns rnu rob roe rof roh ron roo ror ros rou rrb rrf rrh rrn rrr rrs rru rsb rse rsf rsh rsn rso rsr rss rsu rub rue ruf ruh run ruo rur rus ruu sbb sbe sbf sbh sbn sbo sbr sbs sbu se- seb see sef seh sen seo ser ses seu sfb sfe sff sfh sfn sfo sfr sfs sfu sh- shb she shf shh shn sho shr shs shu snb sne snf snn sno snr sns snu sob soe sof soh son soo sor sos sou sr- srb sre srf srh srn sro srr srs ss- ssb sse ssf ssh ssn sso ssr sss ssu sub sue suf suh sun suo sur sus suu ubb ube ubf ubh ubn ubo ubr ubs ubu ueb uee uef ueh uen uer ues ufe uff ufh ufn ufo ufr ufs ufu uhb uhe uhf uhh uho uhr uhs uhu un- unb une unf unh unn uno unr uns unu uob uoe uon uoo uor uos ur- urb ure urf urn uro urr urs uru usb use usf ush usn uso usr uss usu uue uun uur uus uuu