-er -ol bbb bbe bbg bbi bbl bbm bbo bbr bbs be- beb bee beg bei bel bem beo ber bes bgb bge bgg bgi bgl bgm bgo bgr bgs bi- bib bie big bii bil bim bio bir bis blb ble blg bli bll blm blo blr bls bmb bme bmg bmi bml bmm bmo bmr bms bob boe bog boi bol bom boo bor bos brb bre brg bri brl brm bro brr brs bsb bse bsg bsi bsl bsm bso bsr bss ebb ebe ebg ebi ebl ebm ebo ebr ebs eeb eee eeg eel eem eeo eer ees egb ege egg egi egl egm ego egr egs eib eie eig eii eil eim eio eir eis elb ele elg eli ell elm elo elr els em- emb eme emg emi eml emm emo emr ems eo- eob eoe eog eoi eol eom eoo eor eos erb ere erg eri erl erm ero err ers es- esb ese esg esi esl esm eso esr ess gbe gbg gbi gbl gbm gbo gbr gbs ge- geb gee geg gei gel gem geo ger ges ggb ggg ggi ggm ggo ggr ggs gib gie gig gii gil gim gio gir gis glb gle glg gli gll glm glo glr gls gmb gme gmg gmi gml gmm gmo gmr gms gob goe gog goi gol gom goo gor gos grb gre grg gri grl grm gro grr grs gsb gse gsg gsi gsl gsm gso gsr gss ibb ibe ibg ibi ibl ibm ibo ibr ibs ie- iee ieg iei iel iem ier ies igb ige igg igi igl igm igo igr igs iib iie iii iil iim iio iir iis il- ilb ile ilg ili ill ilm ilo ilr ils im- imb ime img imi iml imm imo ims io- iob ioe iog ioi iol iom ioo ior ios ir- irb ire irg iri irl irm iro irr irs is- isb ise isg isi isl ism iso isr iss lbb lbe lbg lbi lbl lbm lbo lbr lbs leb lee leg lei lel lem leo ler les lgb lge lgg lgi lgl lgm lgo lgr lgs lib lie lig lii lil lim lio lir lis llb lle llg lli lll llm llo llr lls lmb lme lmg lmi lml lmm lmo lmr lms lob loe log loi lol lom loo lor los lrb lrg lri lrm lro lrr lrs lsb lse lsg lsi lsl lsm lso lsr lss m-o m-r mbb mbe mbg mbi mbl mbm mbo mbr mbs meb mee meg mei mel mem meo mer mes mgb mge mgi mgl mgm mgo mgr mgs mi- mib mie mig mii mil mim mio mir mis mlb mle mlg mli mll mlm mlo mlr mls mmb mme mmg mmi mml mmm mmo mmr mms mob moe mog moi mol mom moo mor mos mrb mre mrg mri mrl mrm mro mrr mrs msb mse msg msi msl msm mso msr mss o-i ob- obb obe obg obi obl obm obo obr obs oeb oee oeg oei oel oem oeo oer oes oge ogg ogi ogl ogo ogs oib oie oii oil oim oio oir ois olb ole olg oli oll olm olo ols om- omb ome omg omi oml omm omo omr oms oo- oob oog ooi ool oom ooo oor oos or- orb ore org ori orl orm oro orr ors os- osb ose osg osi osl osm oso osr oss rbb rbe rbg rbi rbl rbm rbo rbr rbs re- reb ree reg rei rel rem reo rer res rgb rge rgg rgi rgo rgr rgs rib rie rig rii ril rim rio rir ris rle rlg rli rll rlm rlo rlr rls rmb rme rmg rmi rml rmm rmo rmr rms rob roe rog roi rol rom roo ror ros rrb rrg rri rrl rrm rrr rrs rsb rse rsg rsi rsl rsm rso rsr rss sbb sbe sbg sbi sbl sbm sbo sbr sbs se- seb see seg sei sel sem seo ser ses sgb sge sgg sgi sgl sgm sgo sgr sgs sib sie sig sii sil sim sio sir sis slb sle slg sli sll slm slo slr sls smb sme smg smi sml smm smo smr sms sob soe sog soi sol som soo sor sos sr- srb sre srg sri srl srm sro srr srs ss- ssb sse ssg ssi ssl ssm sso ssr sss