-er -ol bbb bbe bbg bbl bbn bbo bbr be- beb bee beg bel ben beo ber bez bgb bge bgg bgl bgn bgo bgr bgz blb ble blg bll bln blo blr blz bnb bne bng bnl bnn bno bnr bnz bob boe bog bol bon boo bor boz brb bre brg brl brn bro brr brz bze bzn bzo bzr bzz ebb ebe ebg ebl ebn ebo ebr eeb eee eeg eel een eeo eer egb ege egg egl egn ego egr elb ele elg ell eln elo elr elz en- enb ene eng enl enn eno enr enz eo- eob eoe eog eol eon eoo eor erb ere erg erl ern ero err erz eze ezo ezr ezz gbe gbg gbl gbn gbo gbr gbz ge- geb gee geg gel gen geo ger gez ggb ggg ggn ggo ggr ggz glb gle glg gll gln glo glr glz gnb gne gnl gnn gno gnr gob goe gog gol gon goo gor goz grb gre grg grl grn gro grr gzo gzr lbb lbe lbg lbl lbo lbr leb lee leg lel len leo ler lez lgb lge lgg lgl lgn lgo lgr llb lle llg lll lln llo llr llz lnb lne lng lnl lnn lno lnr lob loe log lol lon loo lor loz lrb lrg lrn lro lrr lrz lzo lzr nbb nbe nbg nbl nbn nbo nbr ne- neb nee neg nel nen neo ner nez ngb nge ngg ngl ngn ngo nlb nle nlg nll nln nlo nlr nlz nnb nne nng nnl nnn nno nnz no- nob noe nog nol non noo nor noz nrb nre nrg nrl nrn nro nrr nrz nzb nze nzg nzo nzz ob- obb obe obg obl obn obo obr oeb oee oeg oel oen oeo oer oge ogg ogl ogn ogo olb ole olg oll oln olo on- onb one ong onl onn ono onr oo- oob oog ool oon ooo oor or- orb ore org orl orn oro orr orz oze ozo ozz rbb rbe rbg rbl rbn rbo rbr re- reb ree reg rel ren reo rer rez rgb rge rgg rgn rgo rgr rle rlg rll rln rlo rlr rnb rng rnn rno rnr rnz rob roe rog rol ron roo ror roz rrb rrg rrl rrn rrr rzb rze rzo z-g zbb zbl zbr zeb zee zel zen zeo zer zez zgb zgg zlr zne znn zno zo- zob zoe zog zol zon zoo zor zrl zro zzr zzz