-er -ol bbb bbe bbg bbi bbk bbl bbm bbo bbr be- beb bee beg bei bek bel bem beo ber bgb bge bgg bgi bgk bgl bgm bgo bgr bi- bib bie big bii bik bil bim bio bir bkb bke bkg bkk bkl bkm bko bkr blb ble blg bli blk bll blm blo blr bmb bme bmg bmi bmk bml bmm bmo bmr bob boe bog boi bok bol bom boo bor brb bre brg bri brk brl brm bro brr ebb ebe ebg ebi ebk ebl ebm ebo ebr eeb eee eeg eek eel eem eeo eer egb ege egg egi egl egm ego egr eib eie eig eii eik eil eim eio eir ekb eke ekg eki ekl eko ekr elb ele elg eli elk ell elm elo elr em- emb eme emg emi emk eml emm emo emr eo- eob eoe eog eoi eok eol eom eoo eor erb ere erg eri erk erl erm ero err gbe gbg gbi gbk gbl gbm gbo gbr ge- geb gee geg gei gek gel gem geo ger ggb ggg ggi ggm ggo ggr gib gie gig gii gik gil gim gio gir gkb gkm gko glb gle glg gli glk gll glm glo glr gmb gme gmg gmi gml gmm gmo gmr gob goe gog goi gok gol gom goo gor grb gre grg gri grk grl grm gro grr ibb ibe ibg ibi ibk ibl ibm ibo ibr ie- iee ieg iei iek iel iem ier igb ige igg igi igk igl igm igo igr iib iie iii iil iim iio iir ikb ike iki ikk ikl iko ikr il- ilb ile ilg ili ilk ill ilm ilo ilr im- imb ime img imi iml imm imo io- iob ioe iog ioi iol iom ioo ior ir- irb ire irg iri irk irl irm iro irr kbb kbe kbi kbk kbl kbm kbo kbr ke- keb kee keg kei kek kel kem keo ker kgb kgi kgl kgm kgo kib kie kig kii kik kil kim kio kir kkb kke kki kkk kkl kkm kkr kl- klb klg kli klm klo klr kmb kme kmg kmi kmk kml kmm kmo kob koe kog koi kok kol kom koo kor krg kri krk krl kro krr lbb lbe lbg lbi lbk lbl lbm lbo lbr leb lee leg lei lek lel lem leo ler lgb lge lgg lgi lgk lgl lgm lgo lgr lib lie lig lii lik lil lim lio lir lkb lkg lkl lkr llb lle llg lli llk lll llm llo llr lmb lme lmg lmi lmk lml lmm lmo lmr lob loe log loi lok lol lom loo lor lrb lrg lri lrk lrm lro lrr m-o m-r mbb mbe mbg mbi mbk mbl mbm mbo mbr meb mee meg mei mek mel mem meo mer mgb mge mgi mgk mgl mgm mgo mgr mi- mib mie mig mii mik mil mim mio mir mkb mke mkg mkk mkl mkm mko mkr mlb mle mlg mli mlk mll mlm mlo mlr mmb mme mmg mmi mmk mml mmm mmo mmr mob moe mog moi mok mol mom moo mor mrb mre mrg mri mrk mrl mrm mro mrr o-i ob- obb obe obg obi obk obl obm obo obr oeb oee oeg oei oel oem oeo oer oge ogg ogi ogl ogo oib oie oii oik oil oim oio oir okb oke okg oki okk okl oko okr olb ole olg oli olk oll olm olo om- omb ome omg omi oml omm omo omr oo- oob oog ooi ook ool oom ooo oor or- orb ore org ori ork orl orm oro orr rbb rbe rbg rbi rbk rbl rbm rbo rbr re- reb ree reg rei rek rel rem reo rer rgb rge rgg rgi rgk rgo rgr rib rie rig rii rik ril rim rio rir rkb rke rkg rkk rkm rko rle rlg rli rll rlm rlo rlr rmb rme rmg rmi rml rmm rmo rmr rob roe rog roi rok rol rom roo ror rrb rrg rri rrk rrl rrm rrr