-er -ol bbb bbe bbh bbl bbn bbo bbr bbs be- beb bee beh bel ben beo ber bes bhb bhe bhh bhl bho bhr bhs blb ble blh bll bln blo blr bls bnb bne bnl bnn bno bnr bns bob boe boh bol bon boo bor bos brb bre brh brl brn bro brr brs bsb bse bsh bsl bsn bso bsr bss ebb ebe ebh ebl ebn ebo ebr ebs eeb eee eel een eeo eer ees ehb ehe ehh ehl ehn eho ehr ehs elb ele elh ell eln elo elr els en- enb ene enh enl enn eno enr ens eo- eob eoe eoh eol eon eoo eor eos erb ere erh erl ern ero err ers es- esb ese esh esl esn eso esr ess hbb hbe hbh hbl hbn hbo hbr hbs he- heb hee heh hel hen heo her hes hhb hhe hhh hhl hhn hho hhr hhs hlb hle hlh hll hln hlo hlr hls hnb hne hnh hnl hnn hno hns hob hoe hoh hol hon hoo hor hos hr- hrb hre hrh hrl hrn hro hrr hrs hsb hse hsh hsl hsn hsr hss lbb lbe lbh lbl lbo lbr lbs leb lee leh lel len leo ler les lhb lhh lho lhr lhs llb lle lll lln llo llr lls lnb lne lnh lnl lnn lno lnr lns lob loe loh lol lon loo lor los lrb lrh lrn lro lrr lrs lsb lse lsh lsl lsn lso lsr lss nbb nbe nbl nbn nbo nbr nbs ne- neb nee neh nel nen neo ner nes nhb nhe nhh nhl nhn nhr nhs nlb nle nlh nll nln nlo nlr nls nnb nne nnh nnl nnn nno nns no- nob noe noh nol non noo nor nos nrb nre nrl nrn nro nrr nrs nsb nse nsh nsl nsn nso nsr nss ob- obb obe obh obl obn obo obr obs oeb oee oeh oel oen oeo oer oes ohe ohh ohl ohn oho ohr ohs olb ole oll oln olo ols on- onb one onh onl onn ono onr ons oo- oob ooh ool oon ooo oor oos or- orb ore orh orl orn oro orr ors os- osb ose osh osl osn oso osr oss rbb rbe rbh rbl rbn rbo rbr rbs re- reb ree reh rel ren reo rer res rh- rhb rhe rhh rhl rhn rho rhr rhs rle rlh rll rln rlo rlr rls rnb rnh rnn rno rnr rns rob roe roh rol ron roo ror ros rrb rrh rrl rrn rrr rrs rsb rse rsh rsl rsn rso rsr rss sbb sbe sbh sbl sbn sbo sbr sbs se- seb see seh sel sen seo ser ses sh- shb she shh shl shn sho shr shs slb sle slh sll sln slo slr sls snb sne snl snn sno snr sns sob soe soh sol son soo sor sos sr- srb sre srh srl srn sro srr srs ss- ssb sse ssh ssl ssn sso ssr sss