-er -ol bbb bbe bbg bbh bbk bbl bbn bbo bbr be- beb bee beg beh bek bel ben beo ber bgb bge bgg bgh bgk bgl bgn bgo bgr bhb bhe bhg bhh bhk bhl bho bhr bkb bke bkg bkk bkl bkn bko bkr blb ble blg blh blk bll bln blo blr bnb bne bng bnk bnl bnn bno bnr bob boe bog boh bok bol bon boo bor brb bre brg brh brk brl brn bro brr ebb ebe ebg ebh ebk ebl ebn ebo ebr eeb eee eeg eek eel een eeo eer egb ege egg egh egl egn ego egr ehb ehe ehg ehh ehl ehn eho ehr ekb eke ekg ekh ekl eko ekr elb ele elg elh elk ell eln elo elr en- enb ene eng enh enk enl enn eno enr eo- eob eoe eog eoh eok eol eon eoo eor erb ere erg erh erk erl ern ero err gbe gbg gbh gbk gbl gbn gbo gbr ge- geb gee geg geh gek gel gen geo ger ggb ggg ggh ggn ggo ggr ghb ghe ghg ghh ghl ghn gho ghr gkb gkh gkn gko glb gle glg glh glk gll gln glo glr gnb gne gnl gnn gno gnr gob goe gog goh gok gol gon goo gor grb gre grg grh grk grl grn gro grr hbb hbe hbg hbh hbk hbl hbn hbo hbr he- heb hee heg heh hek hel hen heo her hgb hge hgg hgh hgk hgl hgn hgo hgr hhb hhe hhg hhh hhk hhl hhn hho hhr hkb hkg hkh hkk hkl hkn hko hkr hlb hle hlg hlh hll hln hlo hlr hnb hne hng hnh hnk hnl hnn hno hob hoe hog hoh hok hol hon hoo hor hr- hrb hre hrg hrh hrk hrl hrn hro hrr kbb kbe kbh kbk kbl kbn kbo kbr ke- keb kee keg keh kek kel ken keo ker kgb kgh kgl kgo khe khh khk khn kho khr kkb kke kkh kkk kkl kkn kkr kl- klb klg klh klo klr kn- kne kng knk knl knn kno knr kob koe kog koh kok kol kon koo kor krg krk krl krn kro krr lbb lbe lbg lbh lbk lbl lbo lbr leb lee leg leh lek lel len leo ler lgb lge lgg lgh lgk lgl lgn lgo lgr lhb lhh lhk lho lhr lkb lkg lkh lkl lkr llb lle llg llk lll lln llo llr lnb lne lng lnh lnk lnl lnn lno lnr lob loe log loh lok lol lon loo lor lrb lrg lrh lrk lrn lro lrr nbb nbe nbg nbk nbl nbn nbo nbr ne- neb nee neg neh nek nel nen neo ner ngb nge ngg ngh ngk ngl ngn ngo nhb nhe nhg nhh nhk nhl nhn nhr nke nkk nkn nko nkr nlb nle nlg nlh nlk nll nln nlo nlr nnb nne nng nnh nnk nnl nnn nno no- nob noe nog noh nok nol non noo nor nrb nre nrg nrk nrl nrn nro nrr ob- obb obe obg obh obk obl obn obo obr oeb oee oeg oeh oel oen oeo oer oge ogg ogh ogl ogn ogo ohe ohg ohh ohl ohn oho ohr okb oke okg okk okl oko okr olb ole olg olk oll oln olo on- onb one ong onh onk onl onn ono onr oo- oob oog ooh ook ool oon ooo oor or- orb ore org orh ork orl orn oro orr rbb rbe rbg rbh rbk rbl rbn rbo rbr re- reb ree reg reh rek rel ren reo rer rgb rge rgg rgh rgk rgn rgo rgr rh- rhb rhe rhg rhh rhl rhn rho rhr rkb rke rkg rkk rko rle rlg rlh rll rln rlo rlr rnb rng rnh rnn rno rnr rob roe rog roh rok rol ron roo ror rrb rrg rrh rrk rrl rrn rrr