-er -ol bbb bbc bbe bbh bbl bbm bbn bbo bbr bcb bcc bce bch bcl bcm bcn bco bcr be- beb bec bee beh bel bem ben beo ber bhb bhc bhe bhh bhl bhm bho bhr blb blc ble blh bll blm bln blo blr bmb bmc bme bmh bml bmm bmn bmo bmr bnb bnc bne bnl bnn bno bnr bob boc boe boh bol bom bon boo bor brb bre brh brl brm brn bro brr c-- cbb cbc cbe cbh cbl cbm cbn cbo cbr ccb ccc cce cch ccl ccm ccn cco ccr ce- ceb cec cee ceh cel cem cen ceo cer ch- chb chc che chh chl chm chn cho chr cl- clb clc cle clh cll clm cln clo clr cmb cmc cme cmh cml cmm cmn cmo cmr cn- cnb cnc cne cnh cnl cnm cnn cno cnr co- cob coc coe coh col com con coo cor crb crc cre crh crl crm crn cro crr ebb ebc ebe ebh ebl ebm ebn ebo ebr ec- ecb ecc ece ech ecl ecm ecn eco ecr eeb eec eee eel eem een eeo eer ehb ehc ehe ehh ehl ehm ehn eho ehr elb elc ele elh ell elm eln elo elr em- emb emc eme emh eml emm emn emo emr en- enb enc ene enh enl enm enn eno enr eo- eob eoc eoe eoh eol eom eon eoo eor erb erc ere erh erl erm ern ero err hbb hbc hbe hbh hbl hbm hbn hbo hbr hcb hcc hce hch hcl hcm hcn hco hcr he- heb hec hee heh hel hem hen heo her hhb hhc hhe hhh hhl hhm hhn hho hhr hlb hlc hle hlh hll hlm hln hlo hlr hmb hmc hme hmh hml hmm hmo hmr hnb hnc hne hnh hnl hnn hno hob hoc hoe hoh hol hom hon hoo hor hr- hrb hrc hre hrh hrl hrm hrn hro hrr lbb lbc lbe lbh lbl lbm lbo lbr lcb lcc lce lch lcl lcm lcn lco lcr leb lec lee leh lel lem len leo ler lhb lhc lhh lho lhr llb llc lle lll llm lln llo llr lmb lmc lme lmh lml lmm lmn lmo lmr lnb lnc lne lnh lnl lnm lnn lno lnr lob loc loe loh lol lom lon loo lor lrb lrc lrh lrm lrn lro lrr m-o m-r mbb mbc mbe mbh mbl mbm mbo mbr mc- mcb mcc mce mch mcl mcm mcn mco mcr meb mec mee meh mel mem men meo mer mhc mhh mhl mhm mhn mho mhr mlb mlc mle mlh mll mlm mln mlo mlr mmb mmc mme mmh mml mmm mmn mmo mmr mnb mnc mne mnl mnm mnn mno mnr mob moc moe moh mol mom mon moo mor mrb mrc mre mrh mrl mrm mrn mro mrr nbb nbc nbe nbl nbm nbn nbo nbr ncb ncc nce nch ncl ncm ncn nco ncr ne- neb nec nee neh nel nem nen neo ner nhb nhc nhe nhh nhl nhm nhn nhr nlb nlc nle nlh nll nlm nln nlo nlr nmb nmc nme nmh nml nmm nmn nmo nmr nnb nnc nne nnh nnl nnm nnn nno no- nob noc noe noh nol nom non noo nor nrb nrc nre nrl nrm nrn nro nrr ob- obb obc obe obh obl obm obn obo obr oc- ocb occ och ocl ocm ocn oco ocr oeb oec oee oeh oel oem oen oeo oer ohc ohe ohh ohl ohm ohn oho ohr olb olc ole oll olm oln olo om- omb omc ome omh oml omm omn omo omr on- onb onc one onh onl onn ono onr oo- oob ooc ooh ool oom oon ooo oor or- orb orc ore orh orl orm orn oro orr rbb rbc rbe rbh rbl rbm rbn rbo rbr rcb rcc rce rch rcl rcm rcn rco rcr re- reb rec ree reh rel rem ren reo rer rh- rhb rhc rhe rhh rhl rhm rhn rho rhr rlc rle rlh rll rlm rln rlo rlr rmb rmc rme rmh rml rmm rmn rmo rmr rnb rnc rnh rnm rnn rno rnr rob roc roe roh rol rom ron roo ror rrb rrc rrh rrl rrm rrn rrr