-er -ol bbb bbe bbl bbn bbo bbr be- beb bee bel ben beo ber bez blb ble bll bln blo blr blz bnb bne bnl bnn bno bnr bnz bob boe bol bon boo bor boz brb bre brl brn bro brr brz bze bzn bzo bzr bzz ebb ebe ebl ebn ebo ebr eeb eee eel een eeo eer elb ele ell eln elo elr elz en- enb ene enl enn eno enr enz eo- eob eoe eol eon eoo eor erb ere erl ern ero err erz eze ezo ezr ezz lbb lbe lbl lbo lbr leb lee lel len leo ler lez llb lle lll lln llo llr llz lnb lne lnl lnn lno lnr lob loe lol lon loo lor loz lrb lrn lro lrr lrz lzo lzr nbb nbe nbl nbn nbo nbr ne- neb nee nel nen neo ner nez nlb nle nll nln nlo nlr nlz nnb nne nnl nnn nno nnz no- nob noe nol non noo nor noz nrb nre nrl nrn nro nrr nrz nzb nze nzo nzz ob- obb obe obl obn obo obr oeb oee oel oen oeo oer olb ole oll oln olo on- onb one onl onn ono onr oo- oob ool oon ooo oor or- orb ore orl orn oro orr orz oze ozo ozz rbb rbe rbl rbn rbo rbr re- reb ree rel ren reo rer rez rle rll rln rlo rlr rnb rnn rno rnr rnz rob roe rol ron roo ror roz rrb rrl rrn rrr rzb rze rzo zbb zbl zbr zeb zee zel zen zeo zer zez zlr zne znn zno zo- zob zoe zol zon zoo zor zrl zro zzr zzz