-er -ol bbb bbe bbh bbl bbn bbo bbr be- beb bee beh bel ben beo ber bez bhb bhe bhh bhl bho bhr blb ble blh bll bln blo blr blz bnb bne bnl bnn bno bnr bnz bob boe boh bol bon boo bor boz brb bre brh brl brn bro brr brz bze bzh bzn bzo bzr bzz ebb ebe ebh ebl ebn ebo ebr eeb eee eel een eeo eer ehb ehe ehh ehl ehn eho ehr elb ele elh ell eln elo elr elz en- enb ene enh enl enn eno enr enz eo- eob eoe eoh eol eon eoo eor erb ere erh erl ern ero err erz eze ezh ezo ezr ezz hbb hbe hbh hbl hbn hbo hbr hbz he- heb hee heh hel hen heo her hez hhb hhe hhh hhl hhn hho hhr hhz hlb hle hlh hll hln hlo hlr hlz hnb hne hnh hnl hnn hno hnz hob hoe hoh hol hon hoo hor hr- hrb hre hrh hrl hrn hro hrr hrz hze hzl hzo lbb lbe lbh lbl lbo lbr leb lee leh lel len leo ler lez lhb lhh lho lhr lhz llb lle lll lln llo llr llz lnb lne lnh lnl lnn lno lnr lob loe loh lol lon loo lor loz lrb lrh lrn lro lrr lrz lzh lzo lzr nbb nbe nbl nbn nbo nbr ne- neb nee neh nel nen neo ner nez nhb nhe nhh nhl nhn nhr nhz nlb nle nlh nll nln nlo nlr nlz nnb nne nnh nnl nnn nno nnz no- nob noe noh nol non noo nor noz nrb nre nrl nrn nro nrr nrz nzb nze nzo nzz ob- obb obe obh obl obn obo obr oeb oee oeh oel oen oeo oer ohe ohh ohl ohn oho ohr olb ole oll oln olo on- onb one onh onl onn ono onr oo- oob ooh ool oon ooo oor or- orb ore orh orl orn oro orr orz oze ozo ozz rbb rbe rbh rbl rbn rbo rbr re- reb ree reh rel ren reo rer rez rh- rhb rhe rhh rhl rhn rho rhr rle rlh rll rln rlo rlr rnb rnh rnn rno rnr rnz rob roe roh rol ron roo ror roz rrb rrh rrl rrn rrr rzb rze rzo zbb zbl zbr zeb zee zeh zel zen zeo zer zez zhe zhl zho zhr zlr zne znn zno zo- zob zoe zol zon zoo zor zrh zrl zro zzr zzz