-er -ol bbb bbc bbe bbh bbk bbl bbm bbo bbr bcb bcc bce bch bck bcl bcm bco bcr be- beb bec bee beh bek bel bem beo ber bhb bhc bhe bhh bhk bhl bhm bho bhr bkb bkc bke bkk bkl bkm bko bkr blb blc ble blh blk bll blm blo blr bmb bmc bme bmh bmk bml bmm bmo bmr bob boc boe boh bok bol bom boo bor brb bre brh brk brl brm bro brr c-- cbb cbc cbe cbh cbk cbl cbm cbo cbr ccb ccc cce cch cck ccl ccm cco ccr ce- ceb cec cee ceh cek cel cem ceo cer ch- chb chc che chh chk chl chm cho chr ckb ckc ckh ckm cko cl- clb clc cle clh clk cll clm clo clr cmb cmc cme cmh cmk cml cmm cmo cmr co- cob coc coe coh cok col com coo cor crb crc cre crh crk crl crm cro crr ebb ebc ebe ebh ebk ebl ebm ebo ebr ec- ecb ecc ece ech eck ecl ecm eco ecr eeb eec eee eek eel eem eeo eer ehb ehc ehe ehh ehl ehm eho ehr ekb ekc eke ekh ekl eko ekr elb elc ele elh elk ell elm elo elr em- emb emc eme emh emk eml emm emo emr eo- eob eoc eoe eoh eok eol eom eoo eor erb erc ere erh erk erl erm ero err hbb hbc hbe hbh hbk hbl hbm hbo hbr hcb hcc hce hch hck hcl hcm hco hcr he- heb hec hee heh hek hel hem heo her hhb hhc hhe hhh hhk hhl hhm hho hhr hkb hkh hkk hkl hkm hko hkr hlb hlc hle hlh hll hlm hlo hlr hmb hmc hme hmh hmk hml hmm hmo hmr hob hoc hoe hoh hok hol hom hoo hor hr- hrb hrc hre hrh hrk hrl hrm hro hrr kbb kbc kbe kbh kbk kbl kbm kbo kbr kcb kcc kce kch kck kcl kcm kcr ke- keb kec kee keh kek kel kem keo ker khe khh khk khm kho khr kkb kkc kke kkh kkk kkl kkm kkr kl- klb klc klh klm klo klr kmb kmc kme kmh kmk kml kmm kmo kob koc koe koh kok kol kom koo kor krc krk krl kro krr lbb lbc lbe lbh lbk lbl lbm lbo lbr lcb lcc lce lch lck lcl lcm lco lcr leb lec lee leh lek lel lem leo ler lhb lhc lhh lhk lho lhr lkb lkh lkl lkr llb llc lle llk lll llm llo llr lmb lmc lme lmh lmk lml lmm lmo lmr lob loc loe loh lok lol lom loo lor lrb lrc lrh lrk lrm lro lrr m-o m-r mbb mbc mbe mbh mbk mbl mbm mbo mbr mc- mcb mcc mce mch mck mcl mcm mco mcr meb mec mee meh mek mel mem meo mer mhc mhh mhk mhl mhm mho mhr mkb mkc mke mkh mkk mkl mkm mko mkr mlb mlc mle mlh mlk mll mlm mlo mlr mmb mmc mme mmh mmk mml mmm mmo mmr mob moc moe moh mok mol mom moo mor mrb mrc mre mrh mrk mrl mrm mro mrr ob- obb obc obe obh obk obl obm obo obr oc- ocb occ och ock ocl ocm oco ocr oeb oec oee oeh oel oem oeo oer ohc ohe ohh ohl ohm oho ohr okb okc oke okk okl oko okr olb olc ole olk oll olm olo om- omb omc ome omh oml omm omo omr oo- oob ooc ooh ook ool oom ooo oor or- orb orc ore orh ork orl orm oro orr rbb rbc rbe rbh rbk rbl rbm rbo rbr rcb rcc rce rch rcl rcm rco rcr re- reb rec ree reh rek rel rem reo rer rh- rhb rhc rhe rhh rhl rhm rho rhr rkb rkc rke rkk rkm rko rlc rle rlh rll rlm rlo rlr rmb rmc rme rmh rml rmm rmo rmr rob roc roe roh rok rol rom roo ror rrb rrc rrh rrk rrl rrm rrr