-er -ol bbb bbe bbh bbi bbk bbl bbn bbo bbr be- beb bee beh bei bek bel ben beo ber bhb bhe bhh bhi bhk bhl bho bhr bi- bib bie bih bii bik bil bin bio bir bkb bke bkk bkl bkn bko bkr blb ble blh bli blk bll bln blo blr bnb bne bni bnk bnl bnn bno bnr bob boe boh boi bok bol bon boo bor brb bre brh bri brk brl brn bro brr ebb ebe ebh ebi ebk ebl ebn ebo ebr eeb eee eek eel een eeo eer ehb ehe ehh ehi ehl ehn eho ehr eib eie eii eik eil ein eio eir ekb eke ekh eki ekl eko ekr elb ele elh eli elk ell eln elo elr en- enb ene enh eni enk enl enn eno enr eo- eob eoe eoh eoi eok eol eon eoo eor erb ere erh eri erk erl ern ero err h-i hbb hbe hbh hbi hbk hbl hbn hbo hbr he- heb hee heh hei hek hel hen heo her hhb hhe hhh hhi hhk hhl hhn hho hhr hib hie hih hii hik hil hin hio hir hkb hkh hki hkk hkl hkn hko hkr hlb hle hlh hli hll hln hlo hlr hnb hne hnh hnk hnl hnn hno hob hoe hoh hoi hok hol hon hoo hor hr- hrb hre hrh hri hrk hrl hrn hro hrr ibb ibe ibh ibi ibk ibl ibn ibo ibr ie- iee iei iek iel ien ier ihb ihe ihh ihi ihk ihl ihn iho ihr iib iie iih iii iil iin iio iir ikb ike iki ikk ikl iko ikr il- ilb ile ilh ili ilk ill iln ilo ilr in- inb ine inh ini ink inl inn ino inr io- iob ioe ioh ioi iol ion ioo ior ir- irb ire iri irk irl irn iro irr kbb kbe kbh kbi kbk kbl kbn kbo kbr ke- keb kee keh kei kek kel ken keo ker khe khh khi khk khn kho khr kib kie kih kii kik kil kin kio kir kkb kke kkh kki kkk kkl kkn kkr kl- klb klh kli klo klr kn- kne kni knk knl knn kno knr kob koe koh koi kok kol kon koo kor kri krk krl krn kro krr lbb lbe lbh lbi lbk lbl lbo lbr leb lee leh lei lek lel len leo ler lhb lhh lhi lhk lho lhr lib lie lih lii lik lil lin lio lir lkb lkh lkl lkr llb lle lli llk lll lln llo llr lnb lne lnh lni lnk lnl lnn lno lnr lob loe loh loi lok lol lon loo lor lrb lrh lri lrk lrn lro lrr n-i nbb nbe nbi nbk nbl nbn nbo nbr ne- neb nee neh nei nek nel nen neo ner nhb nhe nhh nhi nhk nhl nhn nhr nib nie nih nii nik nil nin nio nir nke nki nkk nkn nko nkr nlb nle nlh nli nlk nll nln nlo nlr nnb nne nnh nni nnk nnl nnn nno no- nob noe noh noi nok nol non noo nor nrb nre nri nrk nrl nrn nro nrr o-i ob- obb obe obh obi obk obl obn obo obr oeb oee oeh oei oel oen oeo oer ohe ohh ohi ohl ohn oho ohr oib oie oii oik oil oin oio oir okb oke oki okk okl oko okr olb ole oli olk oll oln olo on- onb one onh oni onk onl onn ono onr oo- oob ooh ooi ook ool oon ooo oor or- orb ore orh ori ork orl orn oro orr rbb rbe rbh rbi rbk rbl rbn rbo rbr re- reb ree reh rei rek rel ren reo rer rh- rhb rhe rhh rhi rhl rhn rho rhr rib rie rih rii rik ril rin rio rir rkb rke rkk rko rle rlh rli rll rln rlo rlr rnb rnh rni rnn rno rnr rob roe roh roi rok rol ron roo ror rrb rrh rri rrk rrl rrn rrr